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Finding the Fourth Proportional to 478,596.54, 660,454.70 and 260,807.11

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Solution

The fourth proportional to 478,596.54, 660,454.70 and 260,807.11 is: 359,909.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,596.54 : 660,454.70 = 260,807.11 : x
  2. Step 2: Convert to fraction form
    478,596.54/660,454.70 = 260,807.11/x
  3. Step 3: Cross multiply
    478,596.54x = 660,454.70 × 260,807.11
  4. Step 4: Simplify right side
    478,596.54x = 172,251,282,244.94
  5. Step 5: Solve for x
    x = 172,251,282,244.94/478,596.54
  6. Step 6: Final answer
    x = 359,909.17

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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.