Home / 1,385,316.77-1,911,718.46-773,478.95

Finding the Fourth Proportional to 1,385,316.77, 1,911,718.46 and 773,478.95

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Solution

The fourth proportional to 1,385,316.77, 1,911,718.46 and 773,478.95 is: 1,067,390.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,316.77 : 1,911,718.46 = 773,478.95 : x
  2. Step 2: Convert to fraction form
    1,385,316.77/1,911,718.46 = 773,478.95/x
  3. Step 3: Cross multiply
    1,385,316.77x = 1,911,718.46 × 773,478.95
  4. Step 4: Simplify right side
    1,385,316.77x = 1,478,673,983,269.02
  5. Step 5: Solve for x
    x = 1,478,673,983,269.02/1,385,316.77
  6. Step 6: Final answer
    x = 1,067,390.52

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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.