Home / 1,312,412.39-1,811,089.45-723,711.52

Finding the Fourth Proportional to 1,312,412.39, 1,811,089.45 and 723,711.52

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Solution

The fourth proportional to 1,312,412.39, 1,811,089.45 and 723,711.52 is: 998,700.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,412.39 : 1,811,089.45 = 723,711.52 : x
  2. Step 2: Convert to fraction form
    1,312,412.39/1,811,089.45 = 723,711.52/x
  3. Step 3: Cross multiply
    1,312,412.39x = 1,811,089.45 × 723,711.52
  4. Step 4: Simplify right side
    1,312,412.39x = 1,310,706,286,041.46
  5. Step 5: Solve for x
    x = 1,310,706,286,041.46/1,312,412.39
  6. Step 6: Final answer
    x = 998,700.02

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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.