Home / 1,355,381.28-2,033,068.68-748,140.48

Finding the Fourth Proportional to 1,355,381.28, 2,033,068.68 and 748,140.48

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Solution

The fourth proportional to 1,355,381.28, 2,033,068.68 and 748,140.48 is: 1,122,208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,381.28 : 2,033,068.68 = 748,140.48 : x
  2. Step 2: Convert to fraction form
    1,355,381.28/2,033,068.68 = 748,140.48/x
  3. Step 3: Cross multiply
    1,355,381.28x = 2,033,068.68 × 748,140.48
  4. Step 4: Simplify right side
    1,355,381.28x = 1,521,020,978,128.17
  5. Step 5: Solve for x
    x = 1,521,020,978,128.17/1,355,381.28
  6. Step 6: Final answer
    x = 1,122,208.93

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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.