Home / 420,949.10-581,075.98-259,869.26

Finding the Fourth Proportional to 420,949.10, 581,075.98 and 259,869.26

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Solution

The fourth proportional to 420,949.10, 581,075.98 and 259,869.26 is: 358,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,949.10 : 581,075.98 = 259,869.26 : x
  2. Step 2: Convert to fraction form
    420,949.10/581,075.98 = 259,869.26/x
  3. Step 3: Cross multiply
    420,949.10x = 581,075.98 × 259,869.26
  4. Step 4: Simplify right side
    420,949.10x = 151,003,784,926.38
  5. Step 5: Solve for x
    x = 151,003,784,926.38/420,949.10
  6. Step 6: Final answer
    x = 358,722.19

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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.