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Finding the Fourth Proportional to 557,611.32, 769,510.62 and 302,966.76

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Solution

The fourth proportional to 557,611.32, 769,510.62 and 302,966.76 is: 418,097.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,611.32 : 769,510.62 = 302,966.76 : x
  2. Step 2: Convert to fraction form
    557,611.32/769,510.62 = 302,966.76/x
  3. Step 3: Cross multiply
    557,611.32x = 769,510.62 × 302,966.76
  4. Step 4: Simplify right side
    557,611.32x = 233,136,139,326.99
  5. Step 5: Solve for x
    x = 233,136,139,326.99/557,611.32
  6. Step 6: Final answer
    x = 418,097.93

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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.