Home / 918,176.40-1,376,280.45-349,337.70

Finding the Fourth Proportional to 918,176.40, 1,376,280.45 and 349,337.70

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Solution

The fourth proportional to 918,176.40, 1,376,280.45 and 349,337.70 is: 523,632.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,176.40 : 1,376,280.45 = 349,337.70 : x
  2. Step 2: Convert to fraction form
    918,176.40/1,376,280.45 = 349,337.70/x
  3. Step 3: Cross multiply
    918,176.40x = 1,376,280.45 × 349,337.70
  4. Step 4: Simplify right side
    918,176.40x = 480,786,646,957.97
  5. Step 5: Solve for x
    x = 480,786,646,957.97/918,176.40
  6. Step 6: Final answer
    x = 523,632.11

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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.