Home / 760,830.59-1,049,977.86-421,298.84

Finding the Fourth Proportional to 760,830.59, 1,049,977.86 and 421,298.84

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Solution

The fourth proportional to 760,830.59, 1,049,977.86 and 421,298.84 is: 581,409.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,830.59 : 1,049,977.86 = 421,298.84 : x
  2. Step 2: Convert to fraction form
    760,830.59/1,049,977.86 = 421,298.84/x
  3. Step 3: Cross multiply
    760,830.59x = 1,049,977.86 × 421,298.84
  4. Step 4: Simplify right side
    760,830.59x = 442,354,454,443.68
  5. Step 5: Solve for x
    x = 442,354,454,443.68/760,830.59
  6. Step 6: Final answer
    x = 581,409.92

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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.