Home / 1,087,059.90-1,500,281.07-657,343.10

Finding the Fourth Proportional to 1,087,059.90, 1,500,281.07 and 657,343.10

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Solution

The fourth proportional to 1,087,059.90, 1,500,281.07 and 657,343.10 is: 907,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,059.90 : 1,500,281.07 = 657,343.10 : x
  2. Step 2: Convert to fraction form
    1,087,059.90/1,500,281.07 = 657,343.10/x
  3. Step 3: Cross multiply
    1,087,059.90x = 1,500,281.07 × 657,343.10
  4. Step 4: Simplify right side
    1,087,059.90x = 986,199,409,425.12
  5. Step 5: Solve for x
    x = 986,199,409,425.12/1,087,059.90
  6. Step 6: Final answer
    x = 907,217.17

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.