Home / 717,075.63-989,545.23-394,788.15

Finding the Fourth Proportional to 717,075.63, 989,545.23 and 394,788.15

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Solution

The fourth proportional to 717,075.63, 989,545.23 and 394,788.15 is: 544,797.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,075.63 : 989,545.23 = 394,788.15 : x
  2. Step 2: Convert to fraction form
    717,075.63/989,545.23 = 394,788.15/x
  3. Step 3: Cross multiply
    717,075.63x = 989,545.23 × 394,788.15
  4. Step 4: Simplify right side
    717,075.63x = 390,660,730,693.03
  5. Step 5: Solve for x
    x = 390,660,730,693.03/717,075.63
  6. Step 6: Final answer
    x = 544,797.11

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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.