Home / 830,678.56-1,146,336.92-448,705.51

Finding the Fourth Proportional to 830,678.56, 1,146,336.92 and 448,705.51

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Solution

The fourth proportional to 830,678.56, 1,146,336.92 and 448,705.51 is: 619,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,678.56 : 1,146,336.92 = 448,705.51 : x
  2. Step 2: Convert to fraction form
    830,678.56/1,146,336.92 = 448,705.51/x
  3. Step 3: Cross multiply
    830,678.56x = 1,146,336.92 × 448,705.51
  4. Step 4: Simplify right side
    830,678.56x = 514,367,692,320.43
  5. Step 5: Solve for x
    x = 514,367,692,320.43/830,678.56
  6. Step 6: Final answer
    x = 619,213.88

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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.