Home / 917,424.82-1,266,075.75-509,531.53

Finding the Fourth Proportional to 917,424.82, 1,266,075.75 and 509,531.53

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Solution

The fourth proportional to 917,424.82, 1,266,075.75 and 509,531.53 is: 703,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,424.82 : 1,266,075.75 = 509,531.53 : x
  2. Step 2: Convert to fraction form
    917,424.82/1,266,075.75 = 509,531.53/x
  3. Step 3: Cross multiply
    917,424.82x = 1,266,075.75 × 509,531.53
  4. Step 4: Simplify right side
    917,424.82x = 645,105,513,993.40
  5. Step 5: Solve for x
    x = 645,105,513,993.40/917,424.82
  6. Step 6: Final answer
    x = 703,169.89

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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.