Home / 875,133.28-1,312,699.92-210,285.28

Finding the Fourth Proportional to 875,133.28, 1,312,699.92 and 210,285.28

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Solution

The fourth proportional to 875,133.28, 1,312,699.92 and 210,285.28 is: 315,427.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,133.28 : 1,312,699.92 = 210,285.28 : x
  2. Step 2: Convert to fraction form
    875,133.28/1,312,699.92 = 210,285.28/x
  3. Step 3: Cross multiply
    875,133.28x = 1,312,699.92 × 210,285.28
  4. Step 4: Simplify right side
    875,133.28x = 276,041,472,268.34
  5. Step 5: Solve for x
    x = 276,041,472,268.34/875,133.28
  6. Step 6: Final answer
    x = 315,427.92

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Similar ratio
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1.5x scale

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.