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Finding the Fourth Proportional to 610,470.40, 916,033.65 and 255,520.30

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Solution

The fourth proportional to 610,470.40, 916,033.65 and 255,520.30 is: 383,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,470.40 : 916,033.65 = 255,520.30 : x
  2. Step 2: Convert to fraction form
    610,470.40/916,033.65 = 255,520.30/x
  3. Step 3: Cross multiply
    610,470.40x = 916,033.65 × 255,520.30
  4. Step 4: Simplify right side
    610,470.40x = 234,065,193,058.10
  5. Step 5: Solve for x
    x = 234,065,193,058.10/610,470.40
  6. Step 6: Final answer
    x = 383,417.76

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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.