Home / 779,442.36-1,075,633.52-421,746.36

Finding the Fourth Proportional to 779,442.36, 1,075,633.52 and 421,746.36

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Solution

The fourth proportional to 779,442.36, 1,075,633.52 and 421,746.36 is: 582,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,442.36 : 1,075,633.52 = 421,746.36 : x
  2. Step 2: Convert to fraction form
    779,442.36/1,075,633.52 = 421,746.36/x
  3. Step 3: Cross multiply
    779,442.36x = 1,075,633.52 × 421,746.36
  4. Step 4: Simplify right side
    779,442.36x = 453,644,521,753.99
  5. Step 5: Solve for x
    x = 453,644,521,753.99/779,442.36
  6. Step 6: Final answer
    x = 582,011.63

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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.