Home / 875,271.20-1,312,906.80-806,842.40

Finding the Fourth Proportional to 875,271.20, 1,312,906.80 and 806,842.40

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Solution

The fourth proportional to 875,271.20, 1,312,906.80 and 806,842.40 is: 1,210,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,271.20 : 1,312,906.80 = 806,842.40 : x
  2. Step 2: Convert to fraction form
    875,271.20/1,312,906.80 = 806,842.40/x
  3. Step 3: Cross multiply
    875,271.20x = 1,312,906.80 × 806,842.40
  4. Step 4: Simplify right side
    875,271.20x = 1,059,308,873,488.32
  5. Step 5: Solve for x
    x = 1,059,308,873,488.32/875,271.20
  6. Step 6: Final answer
    x = 1,210,263.60

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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.