Home / 1,388,830.95-2,081,780.93-748,960.53

Finding the Fourth Proportional to 1,388,830.95, 2,081,780.93 and 748,960.53

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Solution

The fourth proportional to 1,388,830.95, 2,081,780.93 and 748,960.53 is: 1,122,650.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,830.95 : 2,081,780.93 = 748,960.53 : x
  2. Step 2: Convert to fraction form
    1,388,830.95/2,081,780.93 = 748,960.53/x
  3. Step 3: Cross multiply
    1,388,830.95x = 2,081,780.93 × 748,960.53
  4. Step 4: Simplify right side
    1,388,830.95x = 1,559,171,744,931.89
  5. Step 5: Solve for x
    x = 1,559,171,744,931.89/1,388,830.95
  6. Step 6: Final answer
    x = 1,122,650.49

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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.