Home / 385,360.20-578,040.30-292,048.20

Finding the Fourth Proportional to 385,360.20, 578,040.30 and 292,048.20

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Solution

The fourth proportional to 385,360.20, 578,040.30 and 292,048.20 is: 438,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,360.20 : 578,040.30 = 292,048.20 : x
  2. Step 2: Convert to fraction form
    385,360.20/578,040.30 = 292,048.20/x
  3. Step 3: Cross multiply
    385,360.20x = 578,040.30 × 292,048.20
  4. Step 4: Simplify right side
    385,360.20x = 168,815,629,142.46
  5. Step 5: Solve for x
    x = 168,815,629,142.46/385,360.20
  6. Step 6: Final answer
    x = 438,072.30

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1.5x scale

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.