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Finding the Fourth Proportional to 1,384,368, 1,910,427.84 and 748,464

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Solution

The fourth proportional to 1,384,368, 1,910,427.84 and 748,464 is: 1,032,880.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,368 : 1,910,427.84 = 748,464 : x
  2. Step 2: Convert to fraction form
    1,384,368/1,910,427.84 = 748,464/x
  3. Step 3: Cross multiply
    1,384,368x = 1,910,427.84 × 748,464
  4. Step 4: Simplify right side
    1,384,368x = 1,429,886,462,837.76
  5. Step 5: Solve for x
    x = 1,429,886,462,837.76/1,384,368
  6. Step 6: Final answer
    x = 1,032,880.32

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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.