Home / 875,115.71-1,312,369.96-306,484.27

Finding the Fourth Proportional to 875,115.71, 1,312,369.96 and 306,484.27

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Solution

The fourth proportional to 875,115.71, 1,312,369.96 and 306,484.27 is: 459,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,115.71 : 1,312,369.96 = 306,484.27 : x
  2. Step 2: Convert to fraction form
    875,115.71/1,312,369.96 = 306,484.27/x
  3. Step 3: Cross multiply
    875,115.71x = 1,312,369.96 × 306,484.27
  4. Step 4: Simplify right side
    875,115.71x = 402,220,749,160.53
  5. Step 5: Solve for x
    x = 402,220,749,160.53/875,115.71
  6. Step 6: Final answer
    x = 459,620.08

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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.