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Finding the Fourth Proportional to 647,316.15, 893,679 and 575,497.44

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Solution

The fourth proportional to 647,316.15, 893,679 and 575,497.44 is: 794,526.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,316.15 : 893,679 = 575,497.44 : x
  2. Step 2: Convert to fraction form
    647,316.15/893,679 = 575,497.44/x
  3. Step 3: Cross multiply
    647,316.15x = 893,679 × 575,497.44
  4. Step 4: Simplify right side
    647,316.15x = 514,309,976,681.76
  5. Step 5: Solve for x
    x = 514,309,976,681.76/647,316.15
  6. Step 6: Final answer
    x = 794,526.72

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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.