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Finding the Fourth Proportional to 873,675.53, 1,205,711.03 and 491,727.05

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Solution

The fourth proportional to 873,675.53, 1,205,711.03 and 491,727.05 is: 678,605.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,675.53 : 1,205,711.03 = 491,727.05 : x
  2. Step 2: Convert to fraction form
    873,675.53/1,205,711.03 = 491,727.05/x
  3. Step 3: Cross multiply
    873,675.53x = 1,205,711.03 × 491,727.05
  4. Step 4: Simplify right side
    873,675.53x = 592,880,727,934.36
  5. Step 5: Solve for x
    x = 592,880,727,934.36/873,675.53
  6. Step 6: Final answer
    x = 678,605.17

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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.