Home / 750,643.62-1,123,140.35-526,441.70

Finding the Fourth Proportional to 750,643.62, 1,123,140.35 and 526,441.70

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Solution

The fourth proportional to 750,643.62, 1,123,140.35 and 526,441.70 is: 787,681.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,643.62 : 1,123,140.35 = 526,441.70 : x
  2. Step 2: Convert to fraction form
    750,643.62/1,123,140.35 = 526,441.70/x
  3. Step 3: Cross multiply
    750,643.62x = 1,123,140.35 × 526,441.70
  4. Step 4: Simplify right side
    750,643.62x = 591,267,915,192.60
  5. Step 5: Solve for x
    x = 591,267,915,192.60/750,643.62
  6. Step 6: Final answer
    x = 787,681.26

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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.