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Finding the Fourth Proportional to 531,444.04, 732,978.06 and 340,475.20

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Solution

The fourth proportional to 531,444.04, 732,978.06 and 340,475.20 is: 469,590.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,444.04 : 732,978.06 = 340,475.20 : x
  2. Step 2: Convert to fraction form
    531,444.04/732,978.06 = 340,475.20/x
  3. Step 3: Cross multiply
    531,444.04x = 732,978.06 × 340,475.20
  4. Step 4: Simplify right side
    531,444.04x = 249,560,851,574.11
  5. Step 5: Solve for x
    x = 249,560,851,574.11/531,444.04
  6. Step 6: Final answer
    x = 469,590.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.