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Finding the Fourth Proportional to 586,283.32, 879,476.82 and 319,929.40

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Solution

The fourth proportional to 586,283.32, 879,476.82 and 319,929.40 is: 479,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,283.32 : 879,476.82 = 319,929.40 : x
  2. Step 2: Convert to fraction form
    586,283.32/879,476.82 = 319,929.40/x
  3. Step 3: Cross multiply
    586,283.32x = 879,476.82 × 319,929.40
  4. Step 4: Simplify right side
    586,283.32x = 281,370,491,336.51
  5. Step 5: Solve for x
    x = 281,370,491,336.51/586,283.32
  6. Step 6: Final answer
    x = 479,922.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.