Home / 723,192.96-997,939.02-400,875.60

Finding the Fourth Proportional to 723,192.96, 997,939.02 and 400,875.60

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Solution

The fourth proportional to 723,192.96, 997,939.02 and 400,875.60 is: 553,171.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,192.96 : 997,939.02 = 400,875.60 : x
  2. Step 2: Convert to fraction form
    723,192.96/997,939.02 = 400,875.60/x
  3. Step 3: Cross multiply
    723,192.96x = 997,939.02 × 400,875.60
  4. Step 4: Simplify right side
    723,192.96x = 400,049,403,405.91
  5. Step 5: Solve for x
    x = 400,049,403,405.91/723,192.96
  6. Step 6: Final answer
    x = 553,171.04

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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.