Home / 385,329.40-577,994.10-377,456.20

Finding the Fourth Proportional to 385,329.40, 577,994.10 and 377,456.20

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Solution

The fourth proportional to 385,329.40, 577,994.10 and 377,456.20 is: 566,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,329.40 : 577,994.10 = 377,456.20 : x
  2. Step 2: Convert to fraction form
    385,329.40/577,994.10 = 377,456.20/x
  3. Step 3: Cross multiply
    385,329.40x = 577,994.10 × 377,456.20
  4. Step 4: Simplify right side
    385,329.40x = 218,167,456,608.42
  5. Step 5: Solve for x
    x = 218,167,456,608.42/385,329.40
  6. Step 6: Final answer
    x = 566,184.30

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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.