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Finding the Fourth Proportional to 607,547.80, 911,321.70 and 253,253.80

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Solution

The fourth proportional to 607,547.80, 911,321.70 and 253,253.80 is: 379,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,547.80 : 911,321.70 = 253,253.80 : x
  2. Step 2: Convert to fraction form
    607,547.80/911,321.70 = 253,253.80/x
  3. Step 3: Cross multiply
    607,547.80x = 911,321.70 × 253,253.80
  4. Step 4: Simplify right side
    607,547.80x = 230,795,683,547.46
  5. Step 5: Solve for x
    x = 230,795,683,547.46/607,547.80
  6. Step 6: Final answer
    x = 379,880.70

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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.