Home / 873,637.02-1,205,616.62-491,663.79

Finding the Fourth Proportional to 873,637.02, 1,205,616.62 and 491,663.79

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Solution

The fourth proportional to 873,637.02, 1,205,616.62 and 491,663.79 is: 678,494.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,637.02 : 1,205,616.62 = 491,663.79 : x
  2. Step 2: Convert to fraction form
    873,637.02/1,205,616.62 = 491,663.79/x
  3. Step 3: Cross multiply
    873,637.02x = 1,205,616.62 × 491,663.79
  4. Step 4: Simplify right side
    873,637.02x = 592,758,034,217.87
  5. Step 5: Solve for x
    x = 592,758,034,217.87/873,637.02
  6. Step 6: Final answer
    x = 678,494.64

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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.