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Finding the Fourth Proportional to 616,319.92, 922,901.52 and 426,517.48

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Solution

The fourth proportional to 616,319.92, 922,901.52 and 426,517.48 is: 638,683.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,319.92 : 922,901.52 = 426,517.48 : x
  2. Step 2: Convert to fraction form
    616,319.92/922,901.52 = 426,517.48/x
  3. Step 3: Cross multiply
    616,319.92x = 922,901.52 × 426,517.48
  4. Step 4: Simplify right side
    616,319.92x = 393,633,630,598.57
  5. Step 5: Solve for x
    x = 393,633,630,598.57/616,319.92
  6. Step 6: Final answer
    x = 638,683.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.