Home / 637,267.55-878,981.24-419,406.80

Finding the Fourth Proportional to 637,267.55, 878,981.24 and 419,406.80

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Solution

The fourth proportional to 637,267.55, 878,981.24 and 419,406.80 is: 578,486.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,267.55 : 878,981.24 = 419,406.80 : x
  2. Step 2: Convert to fraction form
    637,267.55/878,981.24 = 419,406.80/x
  3. Step 3: Cross multiply
    637,267.55x = 878,981.24 × 419,406.80
  4. Step 4: Simplify right side
    637,267.55x = 368,650,704,733.53
  5. Step 5: Solve for x
    x = 368,650,704,733.53/637,267.55
  6. Step 6: Final answer
    x = 578,486.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.