Home / 1,246,307.40-1,869,461.10-447,712.20

Finding the Fourth Proportional to 1,246,307.40, 1,869,461.10 and 447,712.20

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Solution

The fourth proportional to 1,246,307.40, 1,869,461.10 and 447,712.20 is: 671,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,307.40 : 1,869,461.10 = 447,712.20 : x
  2. Step 2: Convert to fraction form
    1,246,307.40/1,869,461.10 = 447,712.20/x
  3. Step 3: Cross multiply
    1,246,307.40x = 1,869,461.10 × 447,712.20
  4. Step 4: Simplify right side
    1,246,307.40x = 836,980,541,895.42
  5. Step 5: Solve for x
    x = 836,980,541,895.42/1,246,307.40
  6. Step 6: Final answer
    x = 671,568.30

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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.