Home / 1,323,007.20-1,984,510.80-784,130.40

Finding the Fourth Proportional to 1,323,007.20, 1,984,510.80 and 784,130.40

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Solution

The fourth proportional to 1,323,007.20, 1,984,510.80 and 784,130.40 is: 1,176,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,007.20 : 1,984,510.80 = 784,130.40 : x
  2. Step 2: Convert to fraction form
    1,323,007.20/1,984,510.80 = 784,130.40/x
  3. Step 3: Cross multiply
    1,323,007.20x = 1,984,510.80 × 784,130.40
  4. Step 4: Simplify right side
    1,323,007.20x = 1,556,115,247,408.32
  5. Step 5: Solve for x
    x = 1,556,115,247,408.32/1,323,007.20
  6. Step 6: Final answer
    x = 1,176,195.60

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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.