Home / 852,270.16-1,276,830.60-430,538.80

Finding the Fourth Proportional to 852,270.16, 1,276,830.60 and 430,538.80

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Solution

The fourth proportional to 852,270.16, 1,276,830.60 and 430,538.80 is: 645,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,270.16 : 1,276,830.60 = 430,538.80 : x
  2. Step 2: Convert to fraction form
    852,270.16/1,276,830.60 = 430,538.80/x
  3. Step 3: Cross multiply
    852,270.16x = 1,276,830.60 × 430,538.80
  4. Step 4: Simplify right side
    852,270.16x = 549,725,114,327.28
  5. Step 5: Solve for x
    x = 549,725,114,327.28/852,270.16
  6. Step 6: Final answer
    x = 645,012.74

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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.