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Finding the Fourth Proportional to 615,031.80, 922,547.70 and 447,070.20

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Solution

The fourth proportional to 615,031.80, 922,547.70 and 447,070.20 is: 670,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,031.80 : 922,547.70 = 447,070.20 : x
  2. Step 2: Convert to fraction form
    615,031.80/922,547.70 = 447,070.20/x
  3. Step 3: Cross multiply
    615,031.80x = 922,547.70 × 447,070.20
  4. Step 4: Simplify right side
    615,031.80x = 412,443,584,748.54
  5. Step 5: Solve for x
    x = 412,443,584,748.54/615,031.80
  6. Step 6: Final answer
    x = 670,605.30

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