Home / 1,402,136.80-2,103,205.20-867,925.60

Finding the Fourth Proportional to 1,402,136.80, 2,103,205.20 and 867,925.60

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Solution

The fourth proportional to 1,402,136.80, 2,103,205.20 and 867,925.60 is: 1,301,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,136.80 : 2,103,205.20 = 867,925.60 : x
  2. Step 2: Convert to fraction form
    1,402,136.80/2,103,205.20 = 867,925.60/x
  3. Step 3: Cross multiply
    1,402,136.80x = 2,103,205.20 × 867,925.60
  4. Step 4: Simplify right side
    1,402,136.80x = 1,825,425,635,133.12
  5. Step 5: Solve for x
    x = 1,825,425,635,133.12/1,402,136.80
  6. Step 6: Final answer
    x = 1,301,888.40

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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.