Home / 1,019,711.78-1,528,189.80-388,281.14

Finding the Fourth Proportional to 1,019,711.78, 1,528,189.80 and 388,281.14

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Solution

The fourth proportional to 1,019,711.78, 1,528,189.80 and 388,281.14 is: 581,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,711.78 : 1,528,189.80 = 388,281.14 : x
  2. Step 2: Convert to fraction form
    1,019,711.78/1,528,189.80 = 388,281.14/x
  3. Step 3: Cross multiply
    1,019,711.78x = 1,528,189.80 × 388,281.14
  4. Step 4: Simplify right side
    1,019,711.78x = 593,367,277,680.37
  5. Step 5: Solve for x
    x = 593,367,277,680.37/1,019,711.78
  6. Step 6: Final answer
    x = 581,897.05

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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.