Home / 912,772.80-1,367,992.80-438,436.80

Finding the Fourth Proportional to 912,772.80, 1,367,992.80 and 438,436.80

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Solution

The fourth proportional to 912,772.80, 1,367,992.80 and 438,436.80 is: 657,094.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,772.80 : 1,367,992.80 = 438,436.80 : x
  2. Step 2: Convert to fraction form
    912,772.80/1,367,992.80 = 438,436.80/x
  3. Step 3: Cross multiply
    912,772.80x = 1,367,992.80 × 438,436.80
  4. Step 4: Simplify right side
    912,772.80x = 599,778,385,655.04
  5. Step 5: Solve for x
    x = 599,778,385,655.04/912,772.80
  6. Step 6: Final answer
    x = 657,094.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.