Home / 927,071.84-1,390,824.74-287,342.15

Finding the Fourth Proportional to 927,071.84, 1,390,824.74 and 287,342.15

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Solution

The fourth proportional to 927,071.84, 1,390,824.74 and 287,342.15 is: 431,080.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,071.84 : 1,390,824.74 = 287,342.15 : x
  2. Step 2: Convert to fraction form
    927,071.84/1,390,824.74 = 287,342.15/x
  3. Step 3: Cross multiply
    927,071.84x = 1,390,824.74 × 287,342.15
  4. Step 4: Simplify right side
    927,071.84x = 399,642,564,829.02
  5. Step 5: Solve for x
    x = 399,642,564,829.02/927,071.84
  6. Step 6: Final answer
    x = 431,080.47

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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.