Home / 690,693.83-1,036,151.46-291,393.42

Finding the Fourth Proportional to 690,693.83, 1,036,151.46 and 291,393.42

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Solution

The fourth proportional to 690,693.83, 1,036,151.46 and 291,393.42 is: 437,136.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,693.83 : 1,036,151.46 = 291,393.42 : x
  2. Step 2: Convert to fraction form
    690,693.83/1,036,151.46 = 291,393.42/x
  3. Step 3: Cross multiply
    690,693.83x = 1,036,151.46 × 291,393.42
  4. Step 4: Simplify right side
    690,693.83x = 301,927,717,567.39
  5. Step 5: Solve for x
    x = 301,927,717,567.39/690,693.83
  6. Step 6: Final answer
    x = 437,136.84

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Double scale
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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.