Home / 1,389,341.50-1,917,291.27-753,437.50

Finding the Fourth Proportional to 1,389,341.50, 1,917,291.27 and 753,437.50

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Solution

The fourth proportional to 1,389,341.50, 1,917,291.27 and 753,437.50 is: 1,039,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,341.50 : 1,917,291.27 = 753,437.50 : x
  2. Step 2: Convert to fraction form
    1,389,341.50/1,917,291.27 = 753,437.50/x
  3. Step 3: Cross multiply
    1,389,341.50x = 1,917,291.27 × 753,437.50
  4. Step 4: Simplify right side
    1,389,341.50x = 1,444,559,141,240.63
  5. Step 5: Solve for x
    x = 1,444,559,141,240.63/1,389,341.50
  6. Step 6: Final answer
    x = 1,039,743.75

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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.