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Finding the Fourth Proportional to 1,402,281.02, 1,938,416.79 and 1,250,820.32

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Solution

The fourth proportional to 1,402,281.02, 1,938,416.79 and 1,250,820.32 is: 1,729,047.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,281.02 : 1,938,416.79 = 1,250,820.32 : x
  2. Step 2: Convert to fraction form
    1,402,281.02/1,938,416.79 = 1,250,820.32/x
  3. Step 3: Cross multiply
    1,402,281.02x = 1,938,416.79 × 1,250,820.32
  4. Step 4: Simplify right side
    1,402,281.02x = 2,424,611,109,561.17
  5. Step 5: Solve for x
    x = 2,424,611,109,561.17/1,402,281.02
  6. Step 6: Final answer
    x = 1,729,047.94

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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.