Home / 717,439.86-990,136.92-535,836.48

Finding the Fourth Proportional to 717,439.86, 990,136.92 and 535,836.48

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Solution

The fourth proportional to 717,439.86, 990,136.92 and 535,836.48 is: 739,506.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,439.86 : 990,136.92 = 535,836.48 : x
  2. Step 2: Convert to fraction form
    717,439.86/990,136.92 = 535,836.48/x
  3. Step 3: Cross multiply
    717,439.86x = 990,136.92 × 535,836.48
  4. Step 4: Simplify right side
    717,439.86x = 530,551,481,930.84
  5. Step 5: Solve for x
    x = 530,551,481,930.84/717,439.86
  6. Step 6: Final answer
    x = 739,506.56

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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.