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Finding the Fourth Proportional to 634,395, 875,384.18 and 362,480.51

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Solution

The fourth proportional to 634,395, 875,384.18 and 362,480.51 is: 500,176.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,395 : 875,384.18 = 362,480.51 : x
  2. Step 2: Convert to fraction form
    634,395/875,384.18 = 362,480.51/x
  3. Step 3: Cross multiply
    634,395x = 875,384.18 × 362,480.51
  4. Step 4: Simplify right side
    634,395x = 317,309,700,541.61
  5. Step 5: Solve for x
    x = 317,309,700,541.61/634,395
  6. Step 6: Final answer
    x = 500,176.86

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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.