Home / 776,495.23-1,071,398.69-489,849.19

Finding the Fourth Proportional to 776,495.23, 1,071,398.69 and 489,849.19

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Solution

The fourth proportional to 776,495.23, 1,071,398.69 and 489,849.19 is: 675,887.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,495.23 : 1,071,398.69 = 489,849.19 : x
  2. Step 2: Convert to fraction form
    776,495.23/1,071,398.69 = 489,849.19/x
  3. Step 3: Cross multiply
    776,495.23x = 1,071,398.69 × 489,849.19
  4. Step 4: Simplify right side
    776,495.23x = 524,823,779,928.16
  5. Step 5: Solve for x
    x = 524,823,779,928.16/776,495.23
  6. Step 6: Final answer
    x = 675,887.97

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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.