Home / 851,025.60-1,276,538.40-430,246.80

Finding the Fourth Proportional to 851,025.60, 1,276,538.40 and 430,246.80

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Solution

The fourth proportional to 851,025.60, 1,276,538.40 and 430,246.80 is: 645,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,025.60 : 1,276,538.40 = 430,246.80 : x
  2. Step 2: Convert to fraction form
    851,025.60/1,276,538.40 = 430,246.80/x
  3. Step 3: Cross multiply
    851,025.60x = 1,276,538.40 × 430,246.80
  4. Step 4: Simplify right side
    851,025.60x = 549,226,561,677.12
  5. Step 5: Solve for x
    x = 549,226,561,677.12/851,025.60
  6. Step 6: Final answer
    x = 645,370.20

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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.