Home / 742,397.11-1,024,508.01-402,865.36

Finding the Fourth Proportional to 742,397.11, 1,024,508.01 and 402,865.36

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Solution

The fourth proportional to 742,397.11, 1,024,508.01 and 402,865.36 is: 555,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,397.11 : 1,024,508.01 = 402,865.36 : x
  2. Step 2: Convert to fraction form
    742,397.11/1,024,508.01 = 402,865.36/x
  3. Step 3: Cross multiply
    742,397.11x = 1,024,508.01 × 402,865.36
  4. Step 4: Simplify right side
    742,397.11x = 412,738,788,271.53
  5. Step 5: Solve for x
    x = 412,738,788,271.53/742,397.11
  6. Step 6: Final answer
    x = 555,954.20

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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.