Home / 779,538.34-1,075,766.52-421,842.34

Finding the Fourth Proportional to 779,538.34, 1,075,766.52 and 421,842.34

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Solution

The fourth proportional to 779,538.34, 1,075,766.52 and 421,842.34 is: 582,144.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,538.34 : 1,075,766.52 = 421,842.34 : x
  2. Step 2: Convert to fraction form
    779,538.34/1,075,766.52 = 421,842.34/x
  3. Step 3: Cross multiply
    779,538.34x = 1,075,766.52 × 421,842.34
  4. Step 4: Simplify right side
    779,538.34x = 453,803,866,090.46
  5. Step 5: Solve for x
    x = 453,803,866,090.46/779,538.34
  6. Step 6: Final answer
    x = 582,144.38

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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.