Home / 830,552.64-1,245,434.40-430,792.80

Finding the Fourth Proportional to 830,552.64, 1,245,434.40 and 430,792.80

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Solution

The fourth proportional to 830,552.64, 1,245,434.40 and 430,792.80 is: 645,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,552.64 : 1,245,434.40 = 430,792.80 : x
  2. Step 2: Convert to fraction form
    830,552.64/1,245,434.40 = 430,792.80/x
  3. Step 3: Cross multiply
    830,552.64x = 1,245,434.40 × 430,792.80
  4. Step 4: Simplify right side
    830,552.64x = 536,524,172,392.32
  5. Step 5: Solve for x
    x = 536,524,172,392.32/830,552.64
  6. Step 6: Final answer
    x = 645,984.55

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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.