Home / 1,087,421.40-1,500,036.30-1,010,445.48

Finding the Fourth Proportional to 1,087,421.40, 1,500,036.30 and 1,010,445.48

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Solution

The fourth proportional to 1,087,421.40, 1,500,036.30 and 1,010,445.48 is: 1,393,852.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,421.40 : 1,500,036.30 = 1,010,445.48 : x
  2. Step 2: Convert to fraction form
    1,087,421.40/1,500,036.30 = 1,010,445.48/x
  3. Step 3: Cross multiply
    1,087,421.40x = 1,500,036.30 × 1,010,445.48
  4. Step 4: Simplify right side
    1,087,421.40x = 1,515,704,899,170.92
  5. Step 5: Solve for x
    x = 1,515,704,899,170.92/1,087,421.40
  6. Step 6: Final answer
    x = 1,393,852.37

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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.