Home / 1,155,711.20-1,732,400.40-525,077.60

Finding the Fourth Proportional to 1,155,711.20, 1,732,400.40 and 525,077.60

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Solution

The fourth proportional to 1,155,711.20, 1,732,400.40 and 525,077.60 is: 787,086.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,711.20 : 1,732,400.40 = 525,077.60 : x
  2. Step 2: Convert to fraction form
    1,155,711.20/1,732,400.40 = 525,077.60/x
  3. Step 3: Cross multiply
    1,155,711.20x = 1,732,400.40 × 525,077.60
  4. Step 4: Simplify right side
    1,155,711.20x = 909,644,644,271.04
  5. Step 5: Solve for x
    x = 909,644,644,271.04/1,155,711.20
  6. Step 6: Final answer
    x = 787,086.47

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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.