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Finding the Fourth Proportional to 504,739.98, 696,368.88 and 286,926.66

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Solution

The fourth proportional to 504,739.98, 696,368.88 and 286,926.66 is: 395,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,739.98 : 696,368.88 = 286,926.66 : x
  2. Step 2: Convert to fraction form
    504,739.98/696,368.88 = 286,926.66/x
  3. Step 3: Cross multiply
    504,739.98x = 696,368.88 × 286,926.66
  4. Step 4: Simplify right side
    504,739.98x = 199,806,796,866.34
  5. Step 5: Solve for x
    x = 199,806,796,866.34/504,739.98
  6. Step 6: Final answer
    x = 395,860.85

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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.