Home / 854,733.60-1,280,350.80-434,246.40

Finding the Fourth Proportional to 854,733.60, 1,280,350.80 and 434,246.40

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Solution

The fourth proportional to 854,733.60, 1,280,350.80 and 434,246.40 is: 650,480.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,733.60 : 1,280,350.80 = 434,246.40 : x
  2. Step 2: Convert to fraction form
    854,733.60/1,280,350.80 = 434,246.40/x
  3. Step 3: Cross multiply
    854,733.60x = 1,280,350.80 × 434,246.40
  4. Step 4: Simplify right side
    854,733.60x = 555,987,725,637.12
  5. Step 5: Solve for x
    x = 555,987,725,637.12/854,733.60
  6. Step 6: Final answer
    x = 650,480.72

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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.