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Finding the Fourth Proportional to 522,007.21, 720,420.51 and 292,603.47

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Solution

The fourth proportional to 522,007.21, 720,420.51 and 292,603.47 is: 403,821.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,007.21 : 720,420.51 = 292,603.47 : x
  2. Step 2: Convert to fraction form
    522,007.21/720,420.51 = 292,603.47/x
  3. Step 3: Cross multiply
    522,007.21x = 720,420.51 × 292,603.47
  4. Step 4: Simplify right side
    522,007.21x = 210,797,541,085.17
  5. Step 5: Solve for x
    x = 210,797,541,085.17/522,007.21
  6. Step 6: Final answer
    x = 403,821.13

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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.