Home / 726,012.40-1,087,706.40-621,036.40

Finding the Fourth Proportional to 726,012.40, 1,087,706.40 and 621,036.40

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Solution

The fourth proportional to 726,012.40, 1,087,706.40 and 621,036.40 is: 930,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,012.40 : 1,087,706.40 = 621,036.40 : x
  2. Step 2: Convert to fraction form
    726,012.40/1,087,706.40 = 621,036.40/x
  3. Step 3: Cross multiply
    726,012.40x = 1,087,706.40 × 621,036.40
  4. Step 4: Simplify right side
    726,012.40x = 675,505,266,912.96
  5. Step 5: Solve for x
    x = 675,505,266,912.96/726,012.40
  6. Step 6: Final answer
    x = 930,432.13

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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.