Home / 785,521.23-1,084,020.21-445,989.48

Finding the Fourth Proportional to 785,521.23, 1,084,020.21 and 445,989.48

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Solution

The fourth proportional to 785,521.23, 1,084,020.21 and 445,989.48 is: 615,466.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,521.23 : 1,084,020.21 = 445,989.48 : x
  2. Step 2: Convert to fraction form
    785,521.23/1,084,020.21 = 445,989.48/x
  3. Step 3: Cross multiply
    785,521.23x = 1,084,020.21 × 445,989.48
  4. Step 4: Simplify right side
    785,521.23x = 483,461,609,767.39
  5. Step 5: Solve for x
    x = 483,461,609,767.39/785,521.23
  6. Step 6: Final answer
    x = 615,466.00

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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.