Home / 669,830.30-1,004,856.15-310,360.40

Finding the Fourth Proportional to 669,830.30, 1,004,856.15 and 310,360.40

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Solution

The fourth proportional to 669,830.30, 1,004,856.15 and 310,360.40 is: 465,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,830.30 : 1,004,856.15 = 310,360.40 : x
  2. Step 2: Convert to fraction form
    669,830.30/1,004,856.15 = 310,360.40/x
  3. Step 3: Cross multiply
    669,830.30x = 1,004,856.15 × 310,360.40
  4. Step 4: Simplify right side
    669,830.30x = 311,867,556,656.46
  5. Step 5: Solve for x
    x = 311,867,556,656.46/669,830.30
  6. Step 6: Final answer
    x = 465,591.89

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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.