Home / 528,549.09-729,398.22-286,831.68

Finding the Fourth Proportional to 528,549.09, 729,398.22 and 286,831.68

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Solution

The fourth proportional to 528,549.09, 729,398.22 and 286,831.68 is: 395,827.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,549.09 : 729,398.22 = 286,831.68 : x
  2. Step 2: Convert to fraction form
    528,549.09/729,398.22 = 286,831.68/x
  3. Step 3: Cross multiply
    528,549.09x = 729,398.22 × 286,831.68
  4. Step 4: Simplify right side
    528,549.09x = 209,214,516,831.61
  5. Step 5: Solve for x
    x = 209,214,516,831.61/528,549.09
  6. Step 6: Final answer
    x = 395,827.98

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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.