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Finding the Fourth Proportional to 806,763.95, 1,113,678.84 and 574,340.93

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Solution

The fourth proportional to 806,763.95, 1,113,678.84 and 574,340.93 is: 792,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,763.95 : 1,113,678.84 = 574,340.93 : x
  2. Step 2: Convert to fraction form
    806,763.95/1,113,678.84 = 574,340.93/x
  3. Step 3: Cross multiply
    806,763.95x = 1,113,678.84 × 574,340.93
  4. Step 4: Simplify right side
    806,763.95x = 639,631,340,686.92
  5. Step 5: Solve for x
    x = 639,631,340,686.92/806,763.95
  6. Step 6: Final answer
    x = 792,835.80

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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.