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Finding the Fourth Proportional to 647,294.89, 893,649.67 and 575,476.16

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Solution

The fourth proportional to 647,294.89, 893,649.67 and 575,476.16 is: 794,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,294.89 : 893,649.67 = 575,476.16 : x
  2. Step 2: Convert to fraction form
    647,294.89/893,649.67 = 575,476.16/x
  3. Step 3: Cross multiply
    647,294.89x = 893,649.67 × 575,476.16
  4. Step 4: Simplify right side
    647,294.89x = 514,274,076,804.05
  5. Step 5: Solve for x
    x = 514,274,076,804.05/647,294.89
  6. Step 6: Final answer
    x = 794,497.35

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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.