Home / 1,989,246.80-2,985,425.40-924,420.80

Finding the Fourth Proportional to 1,989,246.80, 2,985,425.40 and 924,420.80

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Solution

The fourth proportional to 1,989,246.80, 2,985,425.40 and 924,420.80 is: 1,387,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,246.80 : 2,985,425.40 = 924,420.80 : x
  2. Step 2: Convert to fraction form
    1,989,246.80/2,985,425.40 = 924,420.80/x
  3. Step 3: Cross multiply
    1,989,246.80x = 2,985,425.40 × 924,420.80
  4. Step 4: Simplify right side
    1,989,246.80x = 2,759,789,336,608.32
  5. Step 5: Solve for x
    x = 2,759,789,336,608.32/1,989,246.80
  6. Step 6: Final answer
    x = 1,387,353.92

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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.