Home / 760,829.92-1,049,944.54-421,298.16

Finding the Fourth Proportional to 760,829.92, 1,049,944.54 and 421,298.16

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Solution

The fourth proportional to 760,829.92, 1,049,944.54 and 421,298.16 is: 581,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,829.92 : 1,049,944.54 = 421,298.16 : x
  2. Step 2: Convert to fraction form
    760,829.92/1,049,944.54 = 421,298.16/x
  3. Step 3: Cross multiply
    760,829.92x = 1,049,944.54 × 421,298.16
  4. Step 4: Simplify right side
    760,829.92x = 442,339,702,804.05
  5. Step 5: Solve for x
    x = 442,339,702,804.05/760,829.92
  6. Step 6: Final answer
    x = 581,391.05

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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.