Home / 1,383,152.47-1,908,758.73-771,343.90

Finding the Fourth Proportional to 1,383,152.47, 1,908,758.73 and 771,343.90

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Solution

The fourth proportional to 1,383,152.47, 1,908,758.73 and 771,343.90 is: 1,064,459.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,152.47 : 1,908,758.73 = 771,343.90 : x
  2. Step 2: Convert to fraction form
    1,383,152.47/1,908,758.73 = 771,343.90/x
  3. Step 3: Cross multiply
    1,383,152.47x = 1,908,758.73 × 771,343.90
  4. Step 4: Simplify right side
    1,383,152.47x = 1,472,309,406,874.84
  5. Step 5: Solve for x
    x = 1,472,309,406,874.84/1,383,152.47
  6. Step 6: Final answer
    x = 1,064,459.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.