Home / 759,966.32-1,048,695.68-420,427.28

Finding the Fourth Proportional to 759,966.32, 1,048,695.68 and 420,427.28

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Solution

The fourth proportional to 759,966.32, 1,048,695.68 and 420,427.28 is: 580,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,966.32 : 1,048,695.68 = 420,427.28 : x
  2. Step 2: Convert to fraction form
    759,966.32/1,048,695.68 = 420,427.28/x
  3. Step 3: Cross multiply
    759,966.32x = 1,048,695.68 × 420,427.28
  4. Step 4: Simplify right side
    759,966.32x = 440,900,272,290.15
  5. Step 5: Solve for x
    x = 440,900,272,290.15/759,966.32
  6. Step 6: Final answer
    x = 580,157.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.