Home / 879,064.31-1,213,116.08-476,656.31

Finding the Fourth Proportional to 879,064.31, 1,213,116.08 and 476,656.31

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Solution

The fourth proportional to 879,064.31, 1,213,116.08 and 476,656.31 is: 657,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,064.31 : 1,213,116.08 = 476,656.31 : x
  2. Step 2: Convert to fraction form
    879,064.31/1,213,116.08 = 476,656.31/x
  3. Step 3: Cross multiply
    879,064.31x = 1,213,116.08 × 476,656.31
  4. Step 4: Simplify right side
    879,064.31x = 578,239,434,943.97
  5. Step 5: Solve for x
    x = 578,239,434,943.97/879,064.31
  6. Step 6: Final answer
    x = 657,789.68

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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.