Home / 867,867.51-1,301,886.93-299,173.78

Finding the Fourth Proportional to 867,867.51, 1,301,886.93 and 299,173.78

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Solution

The fourth proportional to 867,867.51, 1,301,886.93 and 299,173.78 is: 448,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,867.51 : 1,301,886.93 = 299,173.78 : x
  2. Step 2: Convert to fraction form
    867,867.51/1,301,886.93 = 299,173.78/x
  3. Step 3: Cross multiply
    867,867.51x = 1,301,886.93 × 299,173.78
  4. Step 4: Simplify right side
    867,867.51x = 389,490,431,385.55
  5. Step 5: Solve for x
    x = 389,490,431,385.55/867,867.51
  6. Step 6: Final answer
    x = 448,790.20

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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.