Home / 390,028.20-583,875.90-366,959.40

Finding the Fourth Proportional to 390,028.20, 583,875.90 and 366,959.40

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Solution

The fourth proportional to 390,028.20, 583,875.90 and 366,959.40 is: 549,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,028.20 : 583,875.90 = 366,959.40 : x
  2. Step 2: Convert to fraction form
    390,028.20/583,875.90 = 366,959.40/x
  3. Step 3: Cross multiply
    390,028.20x = 583,875.90 × 366,959.40
  4. Step 4: Simplify right side
    390,028.20x = 214,258,749,938.46
  5. Step 5: Solve for x
    x = 214,258,749,938.46/390,028.20
  6. Step 6: Final answer
    x = 549,341.69

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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.