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Finding the Fourth Proportional to 688,419, 949,752 and 507,560.04

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Solution

The fourth proportional to 688,419, 949,752 and 507,560.04 is: 700,236.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,419 : 949,752 = 507,560.04 : x
  2. Step 2: Convert to fraction form
    688,419/949,752 = 507,560.04/x
  3. Step 3: Cross multiply
    688,419x = 949,752 × 507,560.04
  4. Step 4: Simplify right side
    688,419x = 482,056,163,110.08
  5. Step 5: Solve for x
    x = 482,056,163,110.08/688,419
  6. Step 6: Final answer
    x = 700,236.58

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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.