Home / 388,985.70-583,478.55-365,366.10

Finding the Fourth Proportional to 388,985.70, 583,478.55 and 365,366.10

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Solution

The fourth proportional to 388,985.70, 583,478.55 and 365,366.10 is: 548,049.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,985.70 : 583,478.55 = 365,366.10 : x
  2. Step 2: Convert to fraction form
    388,985.70/583,478.55 = 365,366.10/x
  3. Step 3: Cross multiply
    388,985.70x = 583,478.55 × 365,366.10
  4. Step 4: Simplify right side
    388,985.70x = 213,183,282,247.16
  5. Step 5: Solve for x
    x = 213,183,282,247.16/388,985.70
  6. Step 6: Final answer
    x = 548,049.15

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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.