Home / 1,312,727.08-1,969,090.40-315,455.08

Finding the Fourth Proportional to 1,312,727.08, 1,969,090.40 and 315,455.08

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Solution

The fourth proportional to 1,312,727.08, 1,969,090.40 and 315,455.08 is: 473,182.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,727.08 : 1,969,090.40 = 315,455.08 : x
  2. Step 2: Convert to fraction form
    1,312,727.08/1,969,090.40 = 315,455.08/x
  3. Step 3: Cross multiply
    1,312,727.08x = 1,969,090.40 × 315,455.08
  4. Step 4: Simplify right side
    1,312,727.08x = 621,159,569,659.23
  5. Step 5: Solve for x
    x = 621,159,569,659.23/1,312,727.08
  6. Step 6: Final answer
    x = 473,182.57

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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.