Home / 430,837.60-646,947.60-291,215.20

Finding the Fourth Proportional to 430,837.60, 646,947.60 and 291,215.20

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Solution

The fourth proportional to 430,837.60, 646,947.60 and 291,215.20 is: 437,290.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,837.60 : 646,947.60 = 291,215.20 : x
  2. Step 2: Convert to fraction form
    430,837.60/646,947.60 = 291,215.20/x
  3. Step 3: Cross multiply
    430,837.60x = 646,947.60 × 291,215.20
  4. Step 4: Simplify right side
    430,837.60x = 188,400,974,723.52
  5. Step 5: Solve for x
    x = 188,400,974,723.52/430,837.60
  6. Step 6: Final answer
    x = 437,290.00

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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.