Home / 498,316.02-687,437-326,158.22

Finding the Fourth Proportional to 498,316.02, 687,437 and 326,158.22

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Solution

The fourth proportional to 498,316.02, 687,437 and 326,158.22 is: 449,941.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,316.02 : 687,437 = 326,158.22 : x
  2. Step 2: Convert to fraction form
    498,316.02/687,437 = 326,158.22/x
  3. Step 3: Cross multiply
    498,316.02x = 687,437 × 326,158.22
  4. Step 4: Simplify right side
    498,316.02x = 224,213,228,282.14
  5. Step 5: Solve for x
    x = 224,213,228,282.14/498,316.02
  6. Step 6: Final answer
    x = 449,941.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.