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Finding the Fourth Proportional to 607,875.40, 911,813.10 and 270,915.40

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Solution

The fourth proportional to 607,875.40, 911,813.10 and 270,915.40 is: 406,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,875.40 : 911,813.10 = 270,915.40 : x
  2. Step 2: Convert to fraction form
    607,875.40/911,813.10 = 270,915.40/x
  3. Step 3: Cross multiply
    607,875.40x = 911,813.10 × 270,915.40
  4. Step 4: Simplify right side
    607,875.40x = 247,024,210,711.74
  5. Step 5: Solve for x
    x = 247,024,210,711.74/607,875.40
  6. Step 6: Final answer
    x = 406,373.10

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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.