Home / 691,724.40-1,037,586.60-424,618.80

Finding the Fourth Proportional to 691,724.40, 1,037,586.60 and 424,618.80

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Solution

The fourth proportional to 691,724.40, 1,037,586.60 and 424,618.80 is: 636,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,724.40 : 1,037,586.60 = 424,618.80 : x
  2. Step 2: Convert to fraction form
    691,724.40/1,037,586.60 = 424,618.80/x
  3. Step 3: Cross multiply
    691,724.40x = 1,037,586.60 × 424,618.80
  4. Step 4: Simplify right side
    691,724.40x = 440,578,776,988.08
  5. Step 5: Solve for x
    x = 440,578,776,988.08/691,724.40
  6. Step 6: Final answer
    x = 636,928.20

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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.