Home / 765,543.18-1,148,737.60-316,159.50

Finding the Fourth Proportional to 765,543.18, 1,148,737.60 and 316,159.50

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Solution

The fourth proportional to 765,543.18, 1,148,737.60 and 316,159.50 is: 474,413.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,543.18 : 1,148,737.60 = 316,159.50 : x
  2. Step 2: Convert to fraction form
    765,543.18/1,148,737.60 = 316,159.50/x
  3. Step 3: Cross multiply
    765,543.18x = 1,148,737.60 × 316,159.50
  4. Step 4: Simplify right side
    765,543.18x = 363,184,305,247.20
  5. Step 5: Solve for x
    x = 363,184,305,247.20/765,543.18
  6. Step 6: Final answer
    x = 474,413.87

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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.