Home / 385,758.80-578,427.26-306,307.13

Finding the Fourth Proportional to 385,758.80, 578,427.26 and 306,307.13

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Solution

The fourth proportional to 385,758.80, 578,427.26 and 306,307.13 is: 459,293.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,758.80 : 578,427.26 = 306,307.13 : x
  2. Step 2: Convert to fraction form
    385,758.80/578,427.26 = 306,307.13/x
  3. Step 3: Cross multiply
    385,758.80x = 578,427.26 × 306,307.13
  4. Step 4: Simplify right side
    385,758.80x = 177,176,392,392.83
  5. Step 5: Solve for x
    x = 177,176,392,392.83/385,758.80
  6. Step 6: Final answer
    x = 459,293.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.