Home / 742,765.20-1,022,685.12-655,460.16

Finding the Fourth Proportional to 742,765.20, 1,022,685.12 and 655,460.16

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Solution

The fourth proportional to 742,765.20, 1,022,685.12 and 655,460.16 is: 902,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,765.20 : 1,022,685.12 = 655,460.16 : x
  2. Step 2: Convert to fraction form
    742,765.20/1,022,685.12 = 655,460.16/x
  3. Step 3: Cross multiply
    742,765.20x = 1,022,685.12 × 655,460.16
  4. Step 4: Simplify right side
    742,765.20x = 670,329,352,384.82
  5. Step 5: Solve for x
    x = 670,329,352,384.82/742,765.20
  6. Step 6: Final answer
    x = 902,478.13

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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.