Home / 870,873.95-1,306,393.37-338,436.04

Finding the Fourth Proportional to 870,873.95, 1,306,393.37 and 338,436.04

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Solution

The fourth proportional to 870,873.95, 1,306,393.37 and 338,436.04 is: 507,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,873.95 : 1,306,393.37 = 338,436.04 : x
  2. Step 2: Convert to fraction form
    870,873.95/1,306,393.37 = 338,436.04/x
  3. Step 3: Cross multiply
    870,873.95x = 1,306,393.37 × 338,436.04
  4. Step 4: Simplify right side
    870,873.95x = 442,130,598,825.06
  5. Step 5: Solve for x
    x = 442,130,598,825.06/870,873.95
  6. Step 6: Final answer
    x = 507,686.10

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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.