Home / 830,678.80-1,146,336.06-448,705.48

Finding the Fourth Proportional to 830,678.80, 1,146,336.06 and 448,705.48

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Solution

The fourth proportional to 830,678.80, 1,146,336.06 and 448,705.48 is: 619,213.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,678.80 : 1,146,336.06 = 448,705.48 : x
  2. Step 2: Convert to fraction form
    830,678.80/1,146,336.06 = 448,705.48/x
  3. Step 3: Cross multiply
    830,678.80x = 1,146,336.06 × 448,705.48
  4. Step 4: Simplify right side
    830,678.80x = 514,367,272,043.61
  5. Step 5: Solve for x
    x = 514,367,272,043.61/830,678.80
  6. Step 6: Final answer
    x = 619,213.19

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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.