Home / 1,543,141.80-2,314,686.78-421,210.80

Finding the Fourth Proportional to 1,543,141.80, 2,314,686.78 and 421,210.80

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Solution

The fourth proportional to 1,543,141.80, 2,314,686.78 and 421,210.80 is: 631,809.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,141.80 : 2,314,686.78 = 421,210.80 : x
  2. Step 2: Convert to fraction form
    1,543,141.80/2,314,686.78 = 421,210.80/x
  3. Step 3: Cross multiply
    1,543,141.80x = 2,314,686.78 × 421,210.80
  4. Step 4: Simplify right side
    1,543,141.80x = 974,971,070,353.22
  5. Step 5: Solve for x
    x = 974,971,070,353.22/1,543,141.80
  6. Step 6: Final answer
    x = 631,809.12

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Double scale
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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.