Home / 1,140,421.64-1,573,831.26-631,124.18

Finding the Fourth Proportional to 1,140,421.64, 1,573,831.26 and 631,124.18

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Solution

The fourth proportional to 1,140,421.64, 1,573,831.26 and 631,124.18 is: 870,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,421.64 : 1,573,831.26 = 631,124.18 : x
  2. Step 2: Convert to fraction form
    1,140,421.64/1,573,831.26 = 631,124.18/x
  3. Step 3: Cross multiply
    1,140,421.64x = 1,573,831.26 × 631,124.18
  4. Step 4: Simplify right side
    1,140,421.64x = 993,282,963,425.87
  5. Step 5: Solve for x
    x = 993,282,963,425.87/1,140,421.64
  6. Step 6: Final answer
    x = 870,978.71

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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.