Home / 870,005.47-1,304,586.29-510,293.86

Finding the Fourth Proportional to 870,005.47, 1,304,586.29 and 510,293.86

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Solution

The fourth proportional to 870,005.47, 1,304,586.29 and 510,293.86 is: 765,193.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,005.47 : 1,304,586.29 = 510,293.86 : x
  2. Step 2: Convert to fraction form
    870,005.47/1,304,586.29 = 510,293.86/x
  3. Step 3: Cross multiply
    870,005.47x = 1,304,586.29 × 510,293.86
  4. Step 4: Simplify right side
    870,005.47x = 665,722,373,627.18
  5. Step 5: Solve for x
    x = 665,722,373,627.18/870,005.47
  6. Step 6: Final answer
    x = 765,193.32

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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.