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Finding the Fourth Proportional to 1,360,967, 1,878,135.54 and 788,037.80

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Solution

The fourth proportional to 1,360,967, 1,878,135.54 and 788,037.80 is: 1,087,492.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360,967 : 1,878,135.54 = 788,037.80 : x
  2. Step 2: Convert to fraction form
    1,360,967/1,878,135.54 = 788,037.80/x
  3. Step 3: Cross multiply
    1,360,967x = 1,878,135.54 × 788,037.80
  4. Step 4: Simplify right side
    1,360,967x = 1,480,041,799,043.41
  5. Step 5: Solve for x
    x = 1,480,041,799,043.41/1,360,967
  6. Step 6: Final answer
    x = 1,087,492.79

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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.