Home / 880,915.53-1,215,630.93-478,498.89

Finding the Fourth Proportional to 880,915.53, 1,215,630.93 and 478,498.89

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Solution

The fourth proportional to 880,915.53, 1,215,630.93 and 478,498.89 is: 660,310.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,915.53 : 1,215,630.93 = 478,498.89 : x
  2. Step 2: Convert to fraction form
    880,915.53/1,215,630.93 = 478,498.89/x
  3. Step 3: Cross multiply
    880,915.53x = 1,215,630.93 × 478,498.89
  4. Step 4: Simplify right side
    880,915.53x = 581,678,050,654.67
  5. Step 5: Solve for x
    x = 581,678,050,654.67/880,915.53
  6. Step 6: Final answer
    x = 660,310.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.