Home / 742,371.60-1,024,475.52-402,839.84

Finding the Fourth Proportional to 742,371.60, 1,024,475.52 and 402,839.84

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Solution

The fourth proportional to 742,371.60, 1,024,475.52 and 402,839.84 is: 555,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,371.60 : 1,024,475.52 = 402,839.84 : x
  2. Step 2: Convert to fraction form
    742,371.60/1,024,475.52 = 402,839.84/x
  3. Step 3: Cross multiply
    742,371.60x = 1,024,475.52 × 402,839.84
  4. Step 4: Simplify right side
    742,371.60x = 412,699,554,560.72
  5. Step 5: Solve for x
    x = 412,699,554,560.72/742,371.60
  6. Step 6: Final answer
    x = 555,920.45

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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.