Home / 679,987.60-1,019,981.40-502,840.60

Finding the Fourth Proportional to 679,987.60, 1,019,981.40 and 502,840.60

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Solution

The fourth proportional to 679,987.60, 1,019,981.40 and 502,840.60 is: 754,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,987.60 : 1,019,981.40 = 502,840.60 : x
  2. Step 2: Convert to fraction form
    679,987.60/1,019,981.40 = 502,840.60/x
  3. Step 3: Cross multiply
    679,987.60x = 1,019,981.40 × 502,840.60
  4. Step 4: Simplify right side
    679,987.60x = 512,888,059,164.84
  5. Step 5: Solve for x
    x = 512,888,059,164.84/679,987.60
  6. Step 6: Final answer
    x = 754,260.90

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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.