Home / 760,827.83-1,049,929.44-421,288.79

Finding the Fourth Proportional to 760,827.83, 1,049,929.44 and 421,288.79

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Solution

The fourth proportional to 760,827.83, 1,049,929.44 and 421,288.79 is: 581,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,827.83 : 1,049,929.44 = 421,288.79 : x
  2. Step 2: Convert to fraction form
    760,827.83/1,049,929.44 = 421,288.79/x
  3. Step 3: Cross multiply
    760,827.83x = 1,049,929.44 × 421,288.79
  4. Step 4: Simplify right side
    760,827.83x = 442,323,503,362.98
  5. Step 5: Solve for x
    x = 442,323,503,362.98/760,827.83
  6. Step 6: Final answer
    x = 581,371.35

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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.