Home / 870,117.92-1,200,657.84-482,931.44

Finding the Fourth Proportional to 870,117.92, 1,200,657.84 and 482,931.44

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Solution

The fourth proportional to 870,117.92, 1,200,657.84 and 482,931.44 is: 666,387.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,117.92 : 1,200,657.84 = 482,931.44 : x
  2. Step 2: Convert to fraction form
    870,117.92/1,200,657.84 = 482,931.44/x
  3. Step 3: Cross multiply
    870,117.92x = 1,200,657.84 × 482,931.44
  4. Step 4: Simplify right side
    870,117.92x = 579,835,419,618.49
  5. Step 5: Solve for x
    x = 579,835,419,618.49/870,117.92
  6. Step 6: Final answer
    x = 666,387.17

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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.