Home / 688,520.20-1,032,780.30-684,583.60

Finding the Fourth Proportional to 688,520.20, 1,032,780.30 and 684,583.60

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Solution

The fourth proportional to 688,520.20, 1,032,780.30 and 684,583.60 is: 1,026,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,520.20 : 1,032,780.30 = 684,583.60 : x
  2. Step 2: Convert to fraction form
    688,520.20/1,032,780.30 = 684,583.60/x
  3. Step 3: Cross multiply
    688,520.20x = 1,032,780.30 × 684,583.60
  4. Step 4: Simplify right side
    688,520.20x = 707,024,455,783.08
  5. Step 5: Solve for x
    x = 707,024,455,783.08/688,520.20
  6. Step 6: Final answer
    x = 1,026,875.40

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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.