Home / 763,795.73-1,054,038.72-419,653.86

Finding the Fourth Proportional to 763,795.73, 1,054,038.72 and 419,653.86

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Solution

The fourth proportional to 763,795.73, 1,054,038.72 and 419,653.86 is: 579,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,795.73 : 1,054,038.72 = 419,653.86 : x
  2. Step 2: Convert to fraction form
    763,795.73/1,054,038.72 = 419,653.86/x
  3. Step 3: Cross multiply
    763,795.73x = 1,054,038.72 × 419,653.86
  4. Step 4: Simplify right side
    763,795.73x = 442,331,417,437.46
  5. Step 5: Solve for x
    x = 442,331,417,437.46/763,795.73
  6. Step 6: Final answer
    x = 579,122.67

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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.