Home / 649,818.02-974,727.04-428,150.18

Finding the Fourth Proportional to 649,818.02, 974,727.04 and 428,150.18

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Solution

The fourth proportional to 649,818.02, 974,727.04 and 428,150.18 is: 642,225.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,818.02 : 974,727.04 = 428,150.18 : x
  2. Step 2: Convert to fraction form
    649,818.02/974,727.04 = 428,150.18/x
  3. Step 3: Cross multiply
    649,818.02x = 974,727.04 × 428,150.18
  4. Step 4: Simplify right side
    649,818.02x = 417,329,557,626.87
  5. Step 5: Solve for x
    x = 417,329,557,626.87/649,818.02
  6. Step 6: Final answer
    x = 642,225.28

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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.