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Finding the Fourth Proportional to 478,677.68, 660,545.40 and 263,805.68

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Solution

The fourth proportional to 478,677.68, 660,545.40 and 263,805.68 is: 364,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,677.68 : 660,545.40 = 263,805.68 : x
  2. Step 2: Convert to fraction form
    478,677.68/660,545.40 = 263,805.68/x
  3. Step 3: Cross multiply
    478,677.68x = 660,545.40 × 263,805.68
  4. Step 4: Simplify right side
    478,677.68x = 174,255,628,417.87
  5. Step 5: Solve for x
    x = 174,255,628,417.87/478,677.68
  6. Step 6: Final answer
    x = 364,035.42

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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.