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Finding the Fourth Proportional to 528,322.88, 728,537.55 and 452,094.32

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Solution

The fourth proportional to 528,322.88, 728,537.55 and 452,094.32 is: 623,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,322.88 : 728,537.55 = 452,094.32 : x
  2. Step 2: Convert to fraction form
    528,322.88/728,537.55 = 452,094.32/x
  3. Step 3: Cross multiply
    528,322.88x = 728,537.55 × 452,094.32
  4. Step 4: Simplify right side
    528,322.88x = 329,367,688,261.72
  5. Step 5: Solve for x
    x = 329,367,688,261.72/528,322.88
  6. Step 6: Final answer
    x = 623,421.21

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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.