Home / 708,489.72-1,058,038.47-622,642.68

Finding the Fourth Proportional to 708,489.72, 1,058,038.47 and 622,642.68

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Solution

The fourth proportional to 708,489.72, 1,058,038.47 and 622,642.68 is: 929,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,489.72 : 1,058,038.47 = 622,642.68 : x
  2. Step 2: Convert to fraction form
    708,489.72/1,058,038.47 = 622,642.68/x
  3. Step 3: Cross multiply
    708,489.72x = 1,058,038.47 × 622,642.68
  4. Step 4: Simplify right side
    708,489.72x = 658,779,908,503.90
  5. Step 5: Solve for x
    x = 658,779,908,503.90/708,489.72
  6. Step 6: Final answer
    x = 929,836.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.