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Finding the Fourth Proportional to 647,288.96, 893,240.18 and 360,802.90

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Solution

The fourth proportional to 647,288.96, 893,240.18 and 360,802.90 is: 497,897.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,288.96 : 893,240.18 = 360,802.90 : x
  2. Step 2: Convert to fraction form
    647,288.96/893,240.18 = 360,802.90/x
  3. Step 3: Cross multiply
    647,288.96x = 893,240.18 × 360,802.90
  4. Step 4: Simplify right side
    647,288.96x = 322,283,643,303.41
  5. Step 5: Solve for x
    x = 322,283,643,303.41/647,288.96
  6. Step 6: Final answer
    x = 497,897.63

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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.