Home / 767,818.18-1,151,233.80-318,848.86

Finding the Fourth Proportional to 767,818.18, 1,151,233.80 and 318,848.86

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Solution

The fourth proportional to 767,818.18, 1,151,233.80 and 318,848.86 is: 478,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,818.18 : 1,151,233.80 = 318,848.86 : x
  2. Step 2: Convert to fraction form
    767,818.18/1,151,233.80 = 318,848.86/x
  3. Step 3: Cross multiply
    767,818.18x = 1,151,233.80 × 318,848.86
  4. Step 4: Simplify right side
    767,818.18x = 367,069,584,723.47
  5. Step 5: Solve for x
    x = 367,069,584,723.47/767,818.18
  6. Step 6: Final answer
    x = 478,068.37

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1.5x scale

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.