Home / 688,277.20-949,557.48-507,419.08

Finding the Fourth Proportional to 688,277.20, 949,557.48 and 507,419.08

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Solution

The fourth proportional to 688,277.20, 949,557.48 and 507,419.08 is: 700,042.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,277.20 : 949,557.48 = 507,419.08 : x
  2. Step 2: Convert to fraction form
    688,277.20/949,557.48 = 507,419.08/x
  3. Step 3: Cross multiply
    688,277.20x = 949,557.48 × 507,419.08
  4. Step 4: Simplify right side
    688,277.20x = 481,823,582,908.72
  5. Step 5: Solve for x
    x = 481,823,582,908.72/688,277.20
  6. Step 6: Final answer
    x = 700,042.92

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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.