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Finding the Fourth Proportional to 897,699, 1,238,824.62 and 495,291

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Solution

The fourth proportional to 897,699, 1,238,824.62 and 495,291 is: 683,501.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,699 : 1,238,824.62 = 495,291 : x
  2. Step 2: Convert to fraction form
    897,699/1,238,824.62 = 495,291/x
  3. Step 3: Cross multiply
    897,699x = 1,238,824.62 × 495,291
  4. Step 4: Simplify right side
    897,699x = 613,578,684,864.42
  5. Step 5: Solve for x
    x = 613,578,684,864.42/897,699
  6. Step 6: Final answer
    x = 683,501.58

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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.