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Finding the Fourth Proportional to 520,295.94, 718,124.13 and 316,303.61

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Solution

The fourth proportional to 520,295.94, 718,124.13 and 316,303.61 is: 436,569.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,295.94 : 718,124.13 = 316,303.61 : x
  2. Step 2: Convert to fraction form
    520,295.94/718,124.13 = 316,303.61/x
  3. Step 3: Cross multiply
    520,295.94x = 718,124.13 × 316,303.61
  4. Step 4: Simplify right side
    520,295.94x = 227,145,251,156.49
  5. Step 5: Solve for x
    x = 227,145,251,156.49/520,295.94
  6. Step 6: Final answer
    x = 436,569.33

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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.