Home / 830,445.62-1,146,014.94-448,472.40

Finding the Fourth Proportional to 830,445.62, 1,146,014.94 and 448,472.40

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Solution

The fourth proportional to 830,445.62, 1,146,014.94 and 448,472.40 is: 618,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,445.62 : 1,146,014.94 = 448,472.40 : x
  2. Step 2: Convert to fraction form
    830,445.62/1,146,014.94 = 448,472.40/x
  3. Step 3: Cross multiply
    830,445.62x = 1,146,014.94 × 448,472.40
  4. Step 4: Simplify right side
    830,445.62x = 513,956,070,577.66
  5. Step 5: Solve for x
    x = 513,956,070,577.66/830,445.62
  6. Step 6: Final answer
    x = 618,891.91

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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.