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Finding the Fourth Proportional to 891,907.52, 1,230,859.76 and 524,317.24

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Solution

The fourth proportional to 891,907.52, 1,230,859.76 and 524,317.24 is: 723,573.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,907.52 : 1,230,859.76 = 524,317.24 : x
  2. Step 2: Convert to fraction form
    891,907.52/1,230,859.76 = 524,317.24/x
  3. Step 3: Cross multiply
    891,907.52x = 1,230,859.76 × 524,317.24
  4. Step 4: Simplify right side
    891,907.52x = 645,360,987,645.46
  5. Step 5: Solve for x
    x = 645,360,987,645.46/891,907.52
  6. Step 6: Final answer
    x = 723,573.89

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Double scale
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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.