Home / 779,582.71-1,075,824.13-421,886.71

Finding the Fourth Proportional to 779,582.71, 1,075,824.13 and 421,886.71

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Solution

The fourth proportional to 779,582.71, 1,075,824.13 and 421,886.71 is: 582,203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,582.71 : 1,075,824.13 = 421,886.71 : x
  2. Step 2: Convert to fraction form
    779,582.71/1,075,824.13 = 421,886.71/x
  3. Step 3: Cross multiply
    779,582.71x = 1,075,824.13 × 421,886.71
  4. Step 4: Simplify right side
    779,582.71x = 453,875,902,744.31
  5. Step 5: Solve for x
    x = 453,875,902,744.31/779,582.71
  6. Step 6: Final answer
    x = 582,203.65

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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.