Home / 647,357.47-893,402.03-375,423.15

Finding the Fourth Proportional to 647,357.47, 893,402.03 and 375,423.15

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Solution

The fourth proportional to 647,357.47, 893,402.03 and 375,423.15 is: 518,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,357.47 : 893,402.03 = 375,423.15 : x
  2. Step 2: Convert to fraction form
    647,357.47/893,402.03 = 375,423.15/x
  3. Step 3: Cross multiply
    647,357.47x = 893,402.03 × 375,423.15
  4. Step 4: Simplify right side
    647,357.47x = 335,403,807,551.93
  5. Step 5: Solve for x
    x = 335,403,807,551.93/647,357.47
  6. Step 6: Final answer
    x = 518,112.21

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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.