Home / 745,583.64-1,028,934.55-423,323.72

Finding the Fourth Proportional to 745,583.64, 1,028,934.55 and 423,323.72

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Solution

The fourth proportional to 745,583.64, 1,028,934.55 and 423,323.72 is: 584,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,583.64 : 1,028,934.55 = 423,323.72 : x
  2. Step 2: Convert to fraction form
    745,583.64/1,028,934.55 = 423,323.72/x
  3. Step 3: Cross multiply
    745,583.64x = 1,028,934.55 × 423,323.72
  4. Step 4: Simplify right side
    745,583.64x = 435,572,401,342.53
  5. Step 5: Solve for x
    x = 435,572,401,342.53/745,583.64
  6. Step 6: Final answer
    x = 584,203.27

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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.