Home / 849,686.31-1,274,529.51-288,720.81

Finding the Fourth Proportional to 849,686.31, 1,274,529.51 and 288,720.81

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Solution

The fourth proportional to 849,686.31, 1,274,529.51 and 288,720.81 is: 433,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,686.31 : 1,274,529.51 = 288,720.81 : x
  2. Step 2: Convert to fraction form
    849,686.31/1,274,529.51 = 288,720.81/x
  3. Step 3: Cross multiply
    849,686.31x = 1,274,529.51 × 288,720.81
  4. Step 4: Simplify right side
    849,686.31x = 367,983,184,679.85
  5. Step 5: Solve for x
    x = 367,983,184,679.85/849,686.31
  6. Step 6: Final answer
    x = 433,081.22

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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.