Home / 612,721.71-845,496.72-354,547.17

Finding the Fourth Proportional to 612,721.71, 845,496.72 and 354,547.17

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Solution

The fourth proportional to 612,721.71, 845,496.72 and 354,547.17 is: 489,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,721.71 : 845,496.72 = 354,547.17 : x
  2. Step 2: Convert to fraction form
    612,721.71/845,496.72 = 354,547.17/x
  3. Step 3: Cross multiply
    612,721.71x = 845,496.72 × 354,547.17
  4. Step 4: Simplify right side
    612,721.71x = 299,768,469,320.28
  5. Step 5: Solve for x
    x = 299,768,469,320.28/612,721.71
  6. Step 6: Final answer
    x = 489,240.82

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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.