Home / 770,346.20-1,155,922.28-315,275.24

Finding the Fourth Proportional to 770,346.20, 1,155,922.28 and 315,275.24

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Solution

The fourth proportional to 770,346.20, 1,155,922.28 and 315,275.24 is: 473,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,346.20 : 1,155,922.28 = 315,275.24 : x
  2. Step 2: Convert to fraction form
    770,346.20/1,155,922.28 = 315,275.24/x
  3. Step 3: Cross multiply
    770,346.20x = 1,155,922.28 × 315,275.24
  4. Step 4: Simplify right side
    770,346.20x = 364,433,674,248.35
  5. Step 5: Solve for x
    x = 364,433,674,248.35/770,346.20
  6. Step 6: Final answer
    x = 473,077.79

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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.