Home / 830,742.80-1,146,424.32-448,769.48

Finding the Fourth Proportional to 830,742.80, 1,146,424.32 and 448,769.48

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Solution

The fourth proportional to 830,742.80, 1,146,424.32 and 448,769.48 is: 619,301.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,742.80 : 1,146,424.32 = 448,769.48 : x
  2. Step 2: Convert to fraction form
    830,742.80/1,146,424.32 = 448,769.48/x
  3. Step 3: Cross multiply
    830,742.80x = 1,146,424.32 × 448,769.48
  4. Step 4: Simplify right side
    830,742.80x = 514,480,245,945.75
  5. Step 5: Solve for x
    x = 514,480,245,945.75/830,742.80
  6. Step 6: Final answer
    x = 619,301.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.