Home / 742,107.24-1,024,109.95-402,575.49

Finding the Fourth Proportional to 742,107.24, 1,024,109.95 and 402,575.49

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Solution

The fourth proportional to 742,107.24, 1,024,109.95 and 402,575.49 is: 555,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,107.24 : 1,024,109.95 = 402,575.49 : x
  2. Step 2: Convert to fraction form
    742,107.24/1,024,109.95 = 402,575.49/x
  3. Step 3: Cross multiply
    742,107.24x = 1,024,109.95 × 402,575.49
  4. Step 4: Simplify right side
    742,107.24x = 412,281,564,935.13
  5. Step 5: Solve for x
    x = 412,281,564,935.13/742,107.24
  6. Step 6: Final answer
    x = 555,555.24

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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.