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Finding the Fourth Proportional to 584,851.20, 877,276.80 and 385,396.80

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Solution

The fourth proportional to 584,851.20, 877,276.80 and 385,396.80 is: 578,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,851.20 : 877,276.80 = 385,396.80 : x
  2. Step 2: Convert to fraction form
    584,851.20/877,276.80 = 385,396.80/x
  3. Step 3: Cross multiply
    584,851.20x = 877,276.80 × 385,396.80
  4. Step 4: Simplify right side
    584,851.20x = 338,099,671,434.24
  5. Step 5: Solve for x
    x = 338,099,671,434.24/584,851.20
  6. Step 6: Final answer
    x = 578,095.20

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Similar ratio
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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.