Home / 1,389,433.13-1,917,417.72-753,529.13

Finding the Fourth Proportional to 1,389,433.13, 1,917,417.72 and 753,529.13

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Solution

The fourth proportional to 1,389,433.13, 1,917,417.72 and 753,529.13 is: 1,039,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,433.13 : 1,917,417.72 = 753,529.13 : x
  2. Step 2: Convert to fraction form
    1,389,433.13/1,917,417.72 = 753,529.13/x
  3. Step 3: Cross multiply
    1,389,433.13x = 1,917,417.72 × 753,529.13
  4. Step 4: Simplify right side
    1,389,433.13x = 1,444,830,096,811.10
  5. Step 5: Solve for x
    x = 1,444,830,096,811.10/1,389,433.13
  6. Step 6: Final answer
    x = 1,039,870.20

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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.