Home / 870,808.32-1,306,294.98-338,370.42

Finding the Fourth Proportional to 870,808.32, 1,306,294.98 and 338,370.42

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Solution

The fourth proportional to 870,808.32, 1,306,294.98 and 338,370.42 is: 507,587.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,808.32 : 1,306,294.98 = 338,370.42 : x
  2. Step 2: Convert to fraction form
    870,808.32/1,306,294.98 = 338,370.42/x
  3. Step 3: Cross multiply
    870,808.32x = 1,306,294.98 × 338,370.42
  4. Step 4: Simplify right side
    870,808.32x = 442,011,581,026.49
  5. Step 5: Solve for x
    x = 442,011,581,026.49/870,808.32
  6. Step 6: Final answer
    x = 507,587.69

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