Home / 760,538.49-1,049,543.37-421,006.74

Finding the Fourth Proportional to 760,538.49, 1,049,543.37 and 421,006.74

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Solution

The fourth proportional to 760,538.49, 1,049,543.37 and 421,006.74 is: 580,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,538.49 : 1,049,543.37 = 421,006.74 : x
  2. Step 2: Convert to fraction form
    760,538.49/1,049,543.37 = 421,006.74/x
  3. Step 3: Cross multiply
    760,538.49x = 1,049,543.37 × 421,006.74
  4. Step 4: Simplify right side
    760,538.49x = 441,864,832,692.31
  5. Step 5: Solve for x
    x = 441,864,832,692.31/760,538.49
  6. Step 6: Final answer
    x = 580,989.44

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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.