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Finding the Fourth Proportional to 577,124.76, 796,434.81 and 315,485.46

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Solution

The fourth proportional to 577,124.76, 796,434.81 and 315,485.46 is: 435,371.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,124.76 : 796,434.81 = 315,485.46 : x
  2. Step 2: Convert to fraction form
    577,124.76/796,434.81 = 315,485.46/x
  3. Step 3: Cross multiply
    577,124.76x = 796,434.81 × 315,485.46
  4. Step 4: Simplify right side
    577,124.76x = 251,263,602,392.86
  5. Step 5: Solve for x
    x = 251,263,602,392.86/577,124.76
  6. Step 6: Final answer
    x = 435,371.38

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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.