Home / 742,398.61-1,024,510.08-402,866.86

Finding the Fourth Proportional to 742,398.61, 1,024,510.08 and 402,866.86

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Solution

The fourth proportional to 742,398.61, 1,024,510.08 and 402,866.86 is: 555,956.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,398.61 : 1,024,510.08 = 402,866.86 : x
  2. Step 2: Convert to fraction form
    742,398.61/1,024,510.08 = 402,866.86/x
  3. Step 3: Cross multiply
    742,398.61x = 1,024,510.08 × 402,866.86
  4. Step 4: Simplify right side
    742,398.61x = 412,741,156,953.61
  5. Step 5: Solve for x
    x = 412,741,156,953.61/742,398.61
  6. Step 6: Final answer
    x = 555,956.26

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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.