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Finding the Fourth Proportional to 607,223.20, 910,834.80 and 355,280.80

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Solution

The fourth proportional to 607,223.20, 910,834.80 and 355,280.80 is: 532,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,223.20 : 910,834.80 = 355,280.80 : x
  2. Step 2: Convert to fraction form
    607,223.20/910,834.80 = 355,280.80/x
  3. Step 3: Cross multiply
    607,223.20x = 910,834.80 × 355,280.80
  4. Step 4: Simplify right side
    607,223.20x = 323,602,116,411.84
  5. Step 5: Solve for x
    x = 323,602,116,411.84/607,223.20
  6. Step 6: Final answer
    x = 532,921.20

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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.