Home / 1,312,273.28-1,968,410.02-315,001.28

Finding the Fourth Proportional to 1,312,273.28, 1,968,410.02 and 315,001.28

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Solution

The fourth proportional to 1,312,273.28, 1,968,410.02 and 315,001.28 is: 472,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,273.28 : 1,968,410.02 = 315,001.28 : x
  2. Step 2: Convert to fraction form
    1,312,273.28/1,968,410.02 = 315,001.28/x
  3. Step 3: Cross multiply
    1,312,273.28x = 1,968,410.02 × 315,001.28
  4. Step 4: Simplify right side
    1,312,273.28x = 620,051,675,864.83
  5. Step 5: Solve for x
    x = 620,051,675,864.83/1,312,273.28
  6. Step 6: Final answer
    x = 472,501.94

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Double scale
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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.