Home / 646,124.76-891,632.34-359,637.48

Finding the Fourth Proportional to 646,124.76, 891,632.34 and 359,637.48

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Solution

The fourth proportional to 646,124.76, 891,632.34 and 359,637.48 is: 496,288.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,124.76 : 891,632.34 = 359,637.48 : x
  2. Step 2: Convert to fraction form
    646,124.76/891,632.34 = 359,637.48/x
  3. Step 3: Cross multiply
    646,124.76x = 891,632.34 × 359,637.48
  4. Step 4: Simplify right side
    646,124.76x = 320,664,407,844.10
  5. Step 5: Solve for x
    x = 320,664,407,844.10/646,124.76
  6. Step 6: Final answer
    x = 496,288.69

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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.