Home / 870,656.31-1,306,488.69-365,172.30

Finding the Fourth Proportional to 870,656.31, 1,306,488.69 and 365,172.30

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Solution

The fourth proportional to 870,656.31, 1,306,488.69 and 365,172.30 is: 547,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,656.31 : 1,306,488.69 = 365,172.30 : x
  2. Step 2: Convert to fraction form
    870,656.31/1,306,488.69 = 365,172.30/x
  3. Step 3: Cross multiply
    870,656.31x = 1,306,488.69 × 365,172.30
  4. Step 4: Simplify right side
    870,656.31x = 477,093,479,851.29
  5. Step 5: Solve for x
    x = 477,093,479,851.29/870,656.31
  6. Step 6: Final answer
    x = 547,969.93

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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.