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Finding the Fourth Proportional to 489,075.66, 674,763.08 and 295,411.01

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Solution

The fourth proportional to 489,075.66, 674,763.08 and 295,411.01 is: 407,569.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,075.66 : 674,763.08 = 295,411.01 : x
  2. Step 2: Convert to fraction form
    489,075.66/674,763.08 = 295,411.01/x
  3. Step 3: Cross multiply
    489,075.66x = 674,763.08 × 295,411.01
  4. Step 4: Simplify right side
    489,075.66x = 199,332,438,122.64
  5. Step 5: Solve for x
    x = 199,332,438,122.64/489,075.66
  6. Step 6: Final answer
    x = 407,569.74

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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.