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Finding the Fourth Proportional to 478,677.39, 660,566.24 and 260,888.03

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Solution

The fourth proportional to 478,677.39, 660,566.24 and 260,888.03 is: 360,020.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,677.39 : 660,566.24 = 260,888.03 : x
  2. Step 2: Convert to fraction form
    478,677.39/660,566.24 = 260,888.03/x
  3. Step 3: Cross multiply
    478,677.39x = 660,566.24 × 260,888.03
  4. Step 4: Simplify right side
    478,677.39x = 172,333,825,038.11
  5. Step 5: Solve for x
    x = 172,333,825,038.11/478,677.39
  6. Step 6: Final answer
    x = 360,020.82

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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.