Home / 578,060.68-865,968.88-425,981.70

Finding the Fourth Proportional to 578,060.68, 865,968.88 and 425,981.70

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Solution

The fourth proportional to 578,060.68, 865,968.88 and 425,981.70 is: 638,145.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,060.68 : 865,968.88 = 425,981.70 : x
  2. Step 2: Convert to fraction form
    578,060.68/865,968.88 = 425,981.70/x
  3. Step 3: Cross multiply
    578,060.68x = 865,968.88 × 425,981.70
  4. Step 4: Simplify right side
    578,060.68x = 368,886,895,649.50
  5. Step 5: Solve for x
    x = 368,886,895,649.50/578,060.68
  6. Step 6: Final answer
    x = 638,145.63

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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.