Home / 1,020,177.68-1,408,141.80-680,645.36

Finding the Fourth Proportional to 1,020,177.68, 1,408,141.80 and 680,645.36

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Solution

The fourth proportional to 1,020,177.68, 1,408,141.80 and 680,645.36 is: 939,488.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,177.68 : 1,408,141.80 = 680,645.36 : x
  2. Step 2: Convert to fraction form
    1,020,177.68/1,408,141.80 = 680,645.36/x
  3. Step 3: Cross multiply
    1,020,177.68x = 1,408,141.80 × 680,645.36
  4. Step 4: Simplify right side
    1,020,177.68x = 958,445,182,392.05
  5. Step 5: Solve for x
    x = 958,445,182,392.05/1,020,177.68
  6. Step 6: Final answer
    x = 939,488.48

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1.5x scale

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.