Home / 875,124.40-1,312,686.60-210,276.40

Finding the Fourth Proportional to 875,124.40, 1,312,686.60 and 210,276.40

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Solution

The fourth proportional to 875,124.40, 1,312,686.60 and 210,276.40 is: 315,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,124.40 : 1,312,686.60 = 210,276.40 : x
  2. Step 2: Convert to fraction form
    875,124.40/1,312,686.60 = 210,276.40/x
  3. Step 3: Cross multiply
    875,124.40x = 1,312,686.60 × 210,276.40
  4. Step 4: Simplify right side
    875,124.40x = 276,027,012,576.24
  5. Step 5: Solve for x
    x = 276,027,012,576.24/875,124.40
  6. Step 6: Final answer
    x = 315,414.60

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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.