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Finding the Fourth Proportional to 692,669.16, 955,874.37 and 386,750.76

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Solution

The fourth proportional to 692,669.16, 955,874.37 and 386,750.76 is: 533,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,669.16 : 955,874.37 = 386,750.76 : x
  2. Step 2: Convert to fraction form
    692,669.16/955,874.37 = 386,750.76/x
  3. Step 3: Cross multiply
    692,669.16x = 955,874.37 × 386,750.76
  4. Step 4: Simplify right side
    692,669.16x = 369,685,139,062.02
  5. Step 5: Solve for x
    x = 369,685,139,062.02/692,669.16
  6. Step 6: Final answer
    x = 533,710.98

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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.