Home / 760,548.80-1,049,565.12-421,009.76

Finding the Fourth Proportional to 760,548.80, 1,049,565.12 and 421,009.76

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Solution

The fourth proportional to 760,548.80, 1,049,565.12 and 421,009.76 is: 580,997.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,548.80 : 1,049,565.12 = 421,009.76 : x
  2. Step 2: Convert to fraction form
    760,548.80/1,049,565.12 = 421,009.76/x
  3. Step 3: Cross multiply
    760,548.80x = 1,049,565.12 × 421,009.76
  4. Step 4: Simplify right side
    760,548.80x = 441,877,159,275.57
  5. Step 5: Solve for x
    x = 441,877,159,275.57/760,548.80
  6. Step 6: Final answer
    x = 580,997.77

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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.