Home / 763,319.25-1,053,339.43-423,765.63

Finding the Fourth Proportional to 763,319.25, 1,053,339.43 and 423,765.63

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Solution

The fourth proportional to 763,319.25, 1,053,339.43 and 423,765.63 is: 584,773.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,319.25 : 1,053,339.43 = 423,765.63 : x
  2. Step 2: Convert to fraction form
    763,319.25/1,053,339.43 = 423,765.63/x
  3. Step 3: Cross multiply
    763,319.25x = 1,053,339.43 × 423,765.63
  4. Step 4: Simplify right side
    763,319.25x = 446,369,047,157.79
  5. Step 5: Solve for x
    x = 446,369,047,157.79/763,319.25
  6. Step 6: Final answer
    x = 584,773.73

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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.