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Finding the Fourth Proportional to 524,366.40, 787,132.80 and 288,170.40

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Solution

The fourth proportional to 524,366.40, 787,132.80 and 288,170.40 is: 432,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,366.40 : 787,132.80 = 288,170.40 : x
  2. Step 2: Convert to fraction form
    524,366.40/787,132.80 = 288,170.40/x
  3. Step 3: Cross multiply
    524,366.40x = 787,132.80 × 288,170.40
  4. Step 4: Simplify right side
    524,366.40x = 226,828,373,829.12
  5. Step 5: Solve for x
    x = 226,828,373,829.12/524,366.40
  6. Step 6: Final answer
    x = 432,576.10

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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.