Home / 648,621.20-972,931.80-559,974.80

Finding the Fourth Proportional to 648,621.20, 972,931.80 and 559,974.80

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Solution

The fourth proportional to 648,621.20, 972,931.80 and 559,974.80 is: 839,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,621.20 : 972,931.80 = 559,974.80 : x
  2. Step 2: Convert to fraction form
    648,621.20/972,931.80 = 559,974.80/x
  3. Step 3: Cross multiply
    648,621.20x = 972,931.80 × 559,974.80
  4. Step 4: Simplify right side
    648,621.20x = 544,817,290,118.64
  5. Step 5: Solve for x
    x = 544,817,290,118.64/648,621.20
  6. Step 6: Final answer
    x = 839,962.20

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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.