Home / 1,127,075.72-1,687,809.20-788,531.36

Finding the Fourth Proportional to 1,127,075.72, 1,687,809.20 and 788,531.36

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Solution

The fourth proportional to 1,127,075.72, 1,687,809.20 and 788,531.36 is: 1,180,835.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,075.72 : 1,687,809.20 = 788,531.36 : x
  2. Step 2: Convert to fraction form
    1,127,075.72/1,687,809.20 = 788,531.36/x
  3. Step 3: Cross multiply
    1,127,075.72x = 1,687,809.20 × 788,531.36
  4. Step 4: Simplify right side
    1,127,075.72x = 1,330,890,471,514.81
  5. Step 5: Solve for x
    x = 1,330,890,471,514.81/1,127,075.72
  6. Step 6: Final answer
    x = 1,180,835.02

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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.