Home / 784,831.56-1,083,274.65-462,756.21

Finding the Fourth Proportional to 784,831.56, 1,083,274.65 and 462,756.21

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Solution

The fourth proportional to 784,831.56, 1,083,274.65 and 462,756.21 is: 638,725.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,831.56 : 1,083,274.65 = 462,756.21 : x
  2. Step 2: Convert to fraction form
    784,831.56/1,083,274.65 = 462,756.21/x
  3. Step 3: Cross multiply
    784,831.56x = 1,083,274.65 × 462,756.21
  4. Step 4: Simplify right side
    784,831.56x = 501,292,071,423.08
  5. Step 5: Solve for x
    x = 501,292,071,423.08/784,831.56
  6. Step 6: Final answer
    x = 638,725.68

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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.