Home / 698,756.64-1,047,387.60-319,108.47

Finding the Fourth Proportional to 698,756.64, 1,047,387.60 and 319,108.47

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Solution

The fourth proportional to 698,756.64, 1,047,387.60 and 319,108.47 is: 478,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,756.64 : 1,047,387.60 = 319,108.47 : x
  2. Step 2: Convert to fraction form
    698,756.64/1,047,387.60 = 319,108.47/x
  3. Step 3: Cross multiply
    698,756.64x = 1,047,387.60 × 319,108.47
  4. Step 4: Simplify right side
    698,756.64x = 334,230,252,937.43
  5. Step 5: Solve for x
    x = 334,230,252,937.43/698,756.64
  6. Step 6: Final answer
    x = 478,321.40

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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.