Home / 770,348.20-1,155,925.28-315,277.24

Finding the Fourth Proportional to 770,348.20, 1,155,925.28 and 315,277.24

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Solution

The fourth proportional to 770,348.20, 1,155,925.28 and 315,277.24 is: 473,080.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,348.20 : 1,155,925.28 = 315,277.24 : x
  2. Step 2: Convert to fraction form
    770,348.20/1,155,925.28 = 315,277.24/x
  3. Step 3: Cross multiply
    770,348.20x = 1,155,925.28 × 315,277.24
  4. Step 4: Simplify right side
    770,348.20x = 364,436,931,924.63
  5. Step 5: Solve for x
    x = 364,436,931,924.63/770,348.20
  6. Step 6: Final answer
    x = 473,080.79

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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.