Home / 390,831.24-586,289.34-124,529.16

Finding the Fourth Proportional to 390,831.24, 586,289.34 and 124,529.16

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Solution

The fourth proportional to 390,831.24, 586,289.34 and 124,529.16 is: 186,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,831.24 : 586,289.34 = 124,529.16 : x
  2. Step 2: Convert to fraction form
    390,831.24/586,289.34 = 124,529.16/x
  3. Step 3: Cross multiply
    390,831.24x = 586,289.34 × 124,529.16
  4. Step 4: Simplify right side
    390,831.24x = 73,010,119,027.15
  5. Step 5: Solve for x
    x = 73,010,119,027.15/390,831.24
  6. Step 6: Final answer
    x = 186,807.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.