Home / 745,622.74-1,028,922.71-423,290.53

Finding the Fourth Proportional to 745,622.74, 1,028,922.71 and 423,290.53

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Solution

The fourth proportional to 745,622.74, 1,028,922.71 and 423,290.53 is: 584,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,622.74 : 1,028,922.71 = 423,290.53 : x
  2. Step 2: Convert to fraction form
    745,622.74/1,028,922.71 = 423,290.53/x
  3. Step 3: Cross multiply
    745,622.74x = 1,028,922.71 × 423,290.53
  4. Step 4: Simplify right side
    745,622.74x = 435,533,240,001.98
  5. Step 5: Solve for x
    x = 435,533,240,001.98/745,622.74
  6. Step 6: Final answer
    x = 584,120.11

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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.