Home / 830,725.92-1,146,400.80-448,752.64

Finding the Fourth Proportional to 830,725.92, 1,146,400.80 and 448,752.64

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Solution

The fourth proportional to 830,725.92, 1,146,400.80 and 448,752.64 is: 619,278.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,725.92 : 1,146,400.80 = 448,752.64 : x
  2. Step 2: Convert to fraction form
    830,725.92/1,146,400.80 = 448,752.64/x
  3. Step 3: Cross multiply
    830,725.92x = 1,146,400.80 × 448,752.64
  4. Step 4: Simplify right side
    830,725.92x = 514,450,385,498.11
  5. Step 5: Solve for x
    x = 514,450,385,498.11/830,725.92
  6. Step 6: Final answer
    x = 619,278.12

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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.