Home / 390,023.20-583,868.40-366,954.40

Finding the Fourth Proportional to 390,023.20, 583,868.40 and 366,954.40

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Solution

The fourth proportional to 390,023.20, 583,868.40 and 366,954.40 is: 549,334.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,023.20 : 583,868.40 = 366,954.40 : x
  2. Step 2: Convert to fraction form
    390,023.20/583,868.40 = 366,954.40/x
  3. Step 3: Cross multiply
    390,023.20x = 583,868.40 × 366,954.40
  4. Step 4: Simplify right side
    390,023.20x = 214,253,078,400.96
  5. Step 5: Solve for x
    x = 214,253,078,400.96/390,023.20
  6. Step 6: Final answer
    x = 549,334.19

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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.