Home / 877,956.64-1,315,561.20-678,767.92

Finding the Fourth Proportional to 877,956.64, 1,315,561.20 and 678,767.92

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Solution

The fourth proportional to 877,956.64, 1,315,561.20 and 678,767.92 is: 1,017,089.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,956.64 : 1,315,561.20 = 678,767.92 : x
  2. Step 2: Convert to fraction form
    877,956.64/1,315,561.20 = 678,767.92/x
  3. Step 3: Cross multiply
    877,956.64x = 1,315,561.20 × 678,767.92
  4. Step 4: Simplify right side
    877,956.64x = 892,960,739,356.70
  5. Step 5: Solve for x
    x = 892,960,739,356.70/877,956.64
  6. Step 6: Final answer
    x = 1,017,089.80

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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.