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Finding the Fourth Proportional to 528,320.88, 728,534.79 and 452,092.32

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Solution

The fourth proportional to 528,320.88, 728,534.79 and 452,092.32 is: 623,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,320.88 : 728,534.79 = 452,092.32 : x
  2. Step 2: Convert to fraction form
    528,320.88/728,534.79 = 452,092.32/x
  3. Step 3: Cross multiply
    528,320.88x = 728,534.79 × 452,092.32
  4. Step 4: Simplify right side
    528,320.88x = 329,364,983,411.81
  5. Step 5: Solve for x
    x = 329,364,983,411.81/528,320.88
  6. Step 6: Final answer
    x = 623,418.45

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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.