Home / 780,023.70-1,170,363.60-425,292.30

Finding the Fourth Proportional to 780,023.70, 1,170,363.60 and 425,292.30

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Solution

The fourth proportional to 780,023.70, 1,170,363.60 and 425,292.30 is: 638,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,023.70 : 1,170,363.60 = 425,292.30 : x
  2. Step 2: Convert to fraction form
    780,023.70/1,170,363.60 = 425,292.30/x
  3. Step 3: Cross multiply
    780,023.70x = 1,170,363.60 × 425,292.30
  4. Step 4: Simplify right side
    780,023.70x = 497,746,627,280.28
  5. Step 5: Solve for x
    x = 497,746,627,280.28/780,023.70
  6. Step 6: Final answer
    x = 638,117.31

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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.