Home / 690,835.02-1,036,289.52-217,557.24

Finding the Fourth Proportional to 690,835.02, 1,036,289.52 and 217,557.24

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Solution

The fourth proportional to 690,835.02, 1,036,289.52 and 217,557.24 is: 326,347.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,835.02 : 1,036,289.52 = 217,557.24 : x
  2. Step 2: Convert to fraction form
    690,835.02/1,036,289.52 = 217,557.24/x
  3. Step 3: Cross multiply
    690,835.02x = 1,036,289.52 × 217,557.24
  4. Step 4: Simplify right side
    690,835.02x = 225,452,287,812.13
  5. Step 5: Solve for x
    x = 225,452,287,812.13/690,835.02
  6. Step 6: Final answer
    x = 326,347.51

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Double scale
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Similar ratio
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1.5x scale

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.