Home / 689,830.02-1,034,702.36-257,463.32

Finding the Fourth Proportional to 689,830.02, 1,034,702.36 and 257,463.32

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Solution

The fourth proportional to 689,830.02, 1,034,702.36 and 257,463.32 is: 386,179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,830.02 : 1,034,702.36 = 257,463.32 : x
  2. Step 2: Convert to fraction form
    689,830.02/1,034,702.36 = 257,463.32/x
  3. Step 3: Cross multiply
    689,830.02x = 1,034,702.36 × 257,463.32
  4. Step 4: Simplify right side
    689,830.02x = 266,397,898,356.61
  5. Step 5: Solve for x
    x = 266,397,898,356.61/689,830.02
  6. Step 6: Final answer
    x = 386,179.05

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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.