Home / 712,580.12-1,068,968.60-239,400.80

Finding the Fourth Proportional to 712,580.12, 1,068,968.60 and 239,400.80

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Solution

The fourth proportional to 712,580.12, 1,068,968.60 and 239,400.80 is: 359,134.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,580.12 : 1,068,968.60 = 239,400.80 : x
  2. Step 2: Convert to fraction form
    712,580.12/1,068,968.60 = 239,400.80/x
  3. Step 3: Cross multiply
    712,580.12x = 1,068,968.60 × 239,400.80
  4. Step 4: Simplify right side
    712,580.12x = 255,911,931,473.03
  5. Step 5: Solve for x
    x = 255,911,931,473.03/712,580.12
  6. Step 6: Final answer
    x = 359,134.26

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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.