Home / 679,220.91-937,345.94-373,291.74

Finding the Fourth Proportional to 679,220.91, 937,345.94 and 373,291.74

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Solution

The fourth proportional to 679,220.91, 937,345.94 and 373,291.74 is: 515,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,220.91 : 937,345.94 = 373,291.74 : x
  2. Step 2: Convert to fraction form
    679,220.91/937,345.94 = 373,291.74/x
  3. Step 3: Cross multiply
    679,220.91x = 937,345.94 × 373,291.74
  4. Step 4: Simplify right side
    679,220.91x = 349,903,496,457.92
  5. Step 5: Solve for x
    x = 349,903,496,457.92/679,220.91
  6. Step 6: Final answer
    x = 515,154.19

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1.5x scale

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.