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Finding the Fourth Proportional to 706,425.16, 977,433.80 and 615,969.60

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Solution

The fourth proportional to 706,425.16, 977,433.80 and 615,969.60 is: 852,276.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,425.16 : 977,433.80 = 615,969.60 : x
  2. Step 2: Convert to fraction form
    706,425.16/977,433.80 = 615,969.60/x
  3. Step 3: Cross multiply
    706,425.16x = 977,433.80 × 615,969.60
  4. Step 4: Simplify right side
    706,425.16x = 602,069,506,812.48
  5. Step 5: Solve for x
    x = 602,069,506,812.48/706,425.16
  6. Step 6: Final answer
    x = 852,276.42

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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.