Home / 849,987.72-1,172,985.84-462,807.72

Finding the Fourth Proportional to 849,987.72, 1,172,985.84 and 462,807.72

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Solution

The fourth proportional to 849,987.72, 1,172,985.84 and 462,807.72 is: 638,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,987.72 : 1,172,985.84 = 462,807.72 : x
  2. Step 2: Convert to fraction form
    849,987.72/1,172,985.84 = 462,807.72/x
  3. Step 3: Cross multiply
    849,987.72x = 1,172,985.84 × 462,807.72
  4. Step 4: Simplify right side
    849,987.72x = 542,866,902,202.69
  5. Step 5: Solve for x
    x = 542,866,902,202.69/849,987.72
  6. Step 6: Final answer
    x = 638,676.17

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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.