Home / 776,676.19-1,071,261.02-518,422.93

Finding the Fourth Proportional to 776,676.19, 1,071,261.02 and 518,422.93

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Solution

The fourth proportional to 776,676.19, 1,071,261.02 and 518,422.93 is: 715,055.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,676.19 : 1,071,261.02 = 518,422.93 : x
  2. Step 2: Convert to fraction form
    776,676.19/1,071,261.02 = 518,422.93/x
  3. Step 3: Cross multiply
    776,676.19x = 1,071,261.02 × 518,422.93
  4. Step 4: Simplify right side
    776,676.19x = 555,366,271,426.88
  5. Step 5: Solve for x
    x = 555,366,271,426.88/776,676.19
  6. Step 6: Final answer
    x = 715,055.11

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Double scale
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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.