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Finding the Fourth Proportional to 688,017.67, 949,460.71 and 377,926.36

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Solution

The fourth proportional to 688,017.67, 949,460.71 and 377,926.36 is: 521,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,017.67 : 949,460.71 = 377,926.36 : x
  2. Step 2: Convert to fraction form
    688,017.67/949,460.71 = 377,926.36/x
  3. Step 3: Cross multiply
    688,017.67x = 949,460.71 × 377,926.36
  4. Step 4: Simplify right side
    688,017.67x = 358,826,230,093.32
  5. Step 5: Solve for x
    x = 358,826,230,093.32/688,017.67
  6. Step 6: Final answer
    x = 521,536.36

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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.