Home / 1,457,875.40-2,186,813.10-820,146.20

Finding the Fourth Proportional to 1,457,875.40, 2,186,813.10 and 820,146.20

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Solution

The fourth proportional to 1,457,875.40, 2,186,813.10 and 820,146.20 is: 1,230,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,875.40 : 2,186,813.10 = 820,146.20 : x
  2. Step 2: Convert to fraction form
    1,457,875.40/2,186,813.10 = 820,146.20/x
  3. Step 3: Cross multiply
    1,457,875.40x = 2,186,813.10 × 820,146.20
  4. Step 4: Simplify right side
    1,457,875.40x = 1,793,506,454,075.22
  5. Step 5: Solve for x
    x = 1,793,506,454,075.22/1,457,875.40
  6. Step 6: Final answer
    x = 1,230,219.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.