Home / 779,801.66-1,075,677.35-469,488.54

Finding the Fourth Proportional to 779,801.66, 1,075,677.35 and 469,488.54

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Solution

The fourth proportional to 779,801.66, 1,075,677.35 and 469,488.54 is: 647,623.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,801.66 : 1,075,677.35 = 469,488.54 : x
  2. Step 2: Convert to fraction form
    779,801.66/1,075,677.35 = 469,488.54/x
  3. Step 3: Cross multiply
    779,801.66x = 1,075,677.35 × 469,488.54
  4. Step 4: Simplify right side
    779,801.66x = 505,018,186,215.13
  5. Step 5: Solve for x
    x = 505,018,186,215.13/779,801.66
  6. Step 6: Final answer
    x = 647,623.90

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1.5x scale

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.