Home / 725,123.81-1,000,697.00-419,296.16

Finding the Fourth Proportional to 725,123.81, 1,000,697.00 and 419,296.16

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Solution

The fourth proportional to 725,123.81, 1,000,697.00 and 419,296.16 is: 578,643.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,123.81 : 1,000,697.00 = 419,296.16 : x
  2. Step 2: Convert to fraction form
    725,123.81/1,000,697.00 = 419,296.16/x
  3. Step 3: Cross multiply
    725,123.81x = 1,000,697.00 × 419,296.16
  4. Step 4: Simplify right side
    725,123.81x = 419,588,409,828.78
  5. Step 5: Solve for x
    x = 419,588,409,828.78/725,123.81
  6. Step 6: Final answer
    x = 578,643.82

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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.