Home / 501,831.56-692,530.08-286,980.68

Finding the Fourth Proportional to 501,831.56, 692,530.08 and 286,980.68

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Solution

The fourth proportional to 501,831.56, 692,530.08 and 286,980.68 is: 396,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,831.56 : 692,530.08 = 286,980.68 : x
  2. Step 2: Convert to fraction form
    501,831.56/692,530.08 = 286,980.68/x
  3. Step 3: Cross multiply
    501,831.56x = 692,530.08 × 286,980.68
  4. Step 4: Simplify right side
    501,831.56x = 198,742,753,278.85
  5. Step 5: Solve for x
    x = 198,742,753,278.85/501,831.56
  6. Step 6: Final answer
    x = 396,034.78

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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.