Home / 1,312,984.80-1,969,477.20-471,427.20

Finding the Fourth Proportional to 1,312,984.80, 1,969,477.20 and 471,427.20

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Solution

The fourth proportional to 1,312,984.80, 1,969,477.20 and 471,427.20 is: 707,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,984.80 : 1,969,477.20 = 471,427.20 : x
  2. Step 2: Convert to fraction form
    1,312,984.80/1,969,477.20 = 471,427.20/x
  3. Step 3: Cross multiply
    1,312,984.80x = 1,969,477.20 × 471,427.20
  4. Step 4: Simplify right side
    1,312,984.80x = 928,465,121,859.84
  5. Step 5: Solve for x
    x = 928,465,121,859.84/1,312,984.80
  6. Step 6: Final answer
    x = 707,140.80

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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.