Home / 785,621.74-1,084,127.48-480,209.49

Finding the Fourth Proportional to 785,621.74, 1,084,127.48 and 480,209.49

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Solution

The fourth proportional to 785,621.74, 1,084,127.48 and 480,209.49 is: 662,670.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,621.74 : 1,084,127.48 = 480,209.49 : x
  2. Step 2: Convert to fraction form
    785,621.74/1,084,127.48 = 480,209.49/x
  3. Step 3: Cross multiply
    785,621.74x = 1,084,127.48 × 480,209.49
  4. Step 4: Simplify right side
    785,621.74x = 520,608,300,045.67
  5. Step 5: Solve for x
    x = 520,608,300,045.67/785,621.74
  6. Step 6: Final answer
    x = 662,670.43

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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.