Home / 1,069,547.88-1,475,835.75-639,671.16

Finding the Fourth Proportional to 1,069,547.88, 1,475,835.75 and 639,671.16

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Solution

The fourth proportional to 1,069,547.88, 1,475,835.75 and 639,671.16 is: 882,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,547.88 : 1,475,835.75 = 639,671.16 : x
  2. Step 2: Convert to fraction form
    1,069,547.88/1,475,835.75 = 639,671.16/x
  3. Step 3: Cross multiply
    1,069,547.88x = 1,475,835.75 × 639,671.16
  4. Step 4: Simplify right side
    1,069,547.88x = 944,049,566,171.97
  5. Step 5: Solve for x
    x = 944,049,566,171.97/1,069,547.88
  6. Step 6: Final answer
    x = 882,662.28

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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.