Home / 768,020.61-1,152,545.10-318,741.85

Finding the Fourth Proportional to 768,020.61, 1,152,545.10 and 318,741.85

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Solution

The fourth proportional to 768,020.61, 1,152,545.10 and 318,741.85 is: 478,326.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,020.61 : 1,152,545.10 = 318,741.85 : x
  2. Step 2: Convert to fraction form
    768,020.61/1,152,545.10 = 318,741.85/x
  3. Step 3: Cross multiply
    768,020.61x = 1,152,545.10 × 318,741.85
  4. Step 4: Simplify right side
    768,020.61x = 367,364,350,026.00
  5. Step 5: Solve for x
    x = 367,364,350,026.00/768,020.61
  6. Step 6: Final answer
    x = 478,326.16

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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.