Home / 1,376,490.17-1,899,503.62-764,681.40

Finding the Fourth Proportional to 1,376,490.17, 1,899,503.62 and 764,681.40

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Solution

The fourth proportional to 1,376,490.17, 1,899,503.62 and 764,681.40 is: 1,055,230.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,490.17 : 1,899,503.62 = 764,681.40 : x
  2. Step 2: Convert to fraction form
    1,376,490.17/1,899,503.62 = 764,681.40/x
  3. Step 3: Cross multiply
    1,376,490.17x = 1,899,503.62 × 764,681.40
  4. Step 4: Simplify right side
    1,376,490.17x = 1,452,515,088,240.42
  5. Step 5: Solve for x
    x = 1,452,515,088,240.42/1,376,490.17
  6. Step 6: Final answer
    x = 1,055,230.99

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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.