Home / 779,803.16-1,075,679.42-469,490.04

Finding the Fourth Proportional to 779,803.16, 1,075,679.42 and 469,490.04

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Solution

The fourth proportional to 779,803.16, 1,075,679.42 and 469,490.04 is: 647,625.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,803.16 : 1,075,679.42 = 469,490.04 : x
  2. Step 2: Convert to fraction form
    779,803.16/1,075,679.42 = 469,490.04/x
  3. Step 3: Cross multiply
    779,803.16x = 1,075,679.42 × 469,490.04
  4. Step 4: Simplify right side
    779,803.16x = 505,020,771,575.53
  5. Step 5: Solve for x
    x = 505,020,771,575.53/779,803.16
  6. Step 6: Final answer
    x = 647,625.97

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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.