Home / 806,870.79-1,209,956.27-274,248.81

Finding the Fourth Proportional to 806,870.79, 1,209,956.27 and 274,248.81

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Solution

The fourth proportional to 806,870.79, 1,209,956.27 and 274,248.81 is: 411,254.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,870.79 : 1,209,956.27 = 274,248.81 : x
  2. Step 2: Convert to fraction form
    806,870.79/1,209,956.27 = 274,248.81/x
  3. Step 3: Cross multiply
    806,870.79x = 1,209,956.27 × 274,248.81
  4. Step 4: Simplify right side
    806,870.79x = 331,829,065,828.30
  5. Step 5: Solve for x
    x = 331,829,065,828.30/806,870.79
  6. Step 6: Final answer
    x = 411,254.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.