Home / 742,366.70-1,024,468.78-402,834.95

Finding the Fourth Proportional to 742,366.70, 1,024,468.78 and 402,834.95

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Solution

The fourth proportional to 742,366.70, 1,024,468.78 and 402,834.95 is: 555,913.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,366.70 : 1,024,468.78 = 402,834.95 : x
  2. Step 2: Convert to fraction form
    742,366.70/1,024,468.78 = 402,834.95/x
  3. Step 3: Cross multiply
    742,366.70x = 1,024,468.78 × 402,834.95
  4. Step 4: Simplify right side
    742,366.70x = 412,691,823,638.43
  5. Step 5: Solve for x
    x = 412,691,823,638.43/742,366.70
  6. Step 6: Final answer
    x = 555,913.71

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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.