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Finding the Fourth Proportional to 610,468.40, 916,030.65 and 255,518.30

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Solution

The fourth proportional to 610,468.40, 916,030.65 and 255,518.30 is: 383,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,468.40 : 916,030.65 = 255,518.30 : x
  2. Step 2: Convert to fraction form
    610,468.40/916,030.65 = 255,518.30/x
  3. Step 3: Cross multiply
    610,468.40x = 916,030.65 × 255,518.30
  4. Step 4: Simplify right side
    610,468.40x = 234,062,594,435.90
  5. Step 5: Solve for x
    x = 234,062,594,435.90/610,468.40
  6. Step 6: Final answer
    x = 383,414.76

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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.