Home / 870,005.09-1,304,585.73-510,293.48

Finding the Fourth Proportional to 870,005.09, 1,304,585.73 and 510,293.48

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Solution

The fourth proportional to 870,005.09, 1,304,585.73 and 510,293.48 is: 765,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,005.09 : 1,304,585.73 = 510,293.48 : x
  2. Step 2: Convert to fraction form
    870,005.09/1,304,585.73 = 510,293.48/x
  3. Step 3: Cross multiply
    870,005.09x = 1,304,585.73 × 510,293.48
  4. Step 4: Simplify right side
    870,005.09x = 665,721,592,120.04
  5. Step 5: Solve for x
    x = 665,721,592,120.04/870,005.09
  6. Step 6: Final answer
    x = 765,192.76

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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.