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Finding the Fourth Proportional to 774,328.80, 1,068,540.72 and 452,056.80

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Solution

The fourth proportional to 774,328.80, 1,068,540.72 and 452,056.80 is: 623,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,328.80 : 1,068,540.72 = 452,056.80 : x
  2. Step 2: Convert to fraction form
    774,328.80/1,068,540.72 = 452,056.80/x
  3. Step 3: Cross multiply
    774,328.80x = 1,068,540.72 × 452,056.80
  4. Step 4: Simplify right side
    774,328.80x = 483,041,098,552.90
  5. Step 5: Solve for x
    x = 483,041,098,552.90/774,328.80
  6. Step 6: Final answer
    x = 623,819.10

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Double scale
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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.