Home / 688,051.20-1,030,327.20-656,558.40

Finding the Fourth Proportional to 688,051.20, 1,030,327.20 and 656,558.40

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Solution

The fourth proportional to 688,051.20, 1,030,327.20 and 656,558.40 is: 983,168.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,051.20 : 1,030,327.20 = 656,558.40 : x
  2. Step 2: Convert to fraction form
    688,051.20/1,030,327.20 = 656,558.40/x
  3. Step 3: Cross multiply
    688,051.20x = 1,030,327.20 × 656,558.40
  4. Step 4: Simplify right side
    688,051.20x = 676,469,977,908.48
  5. Step 5: Solve for x
    x = 676,469,977,908.48/688,051.20
  6. Step 6: Final answer
    x = 983,168.08

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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.