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Finding the Fourth Proportional to 676,300.80, 933,158.40 and 374,438.40

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Solution

The fourth proportional to 676,300.80, 933,158.40 and 374,438.40 is: 516,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,300.80 : 933,158.40 = 374,438.40 : x
  2. Step 2: Convert to fraction form
    676,300.80/933,158.40 = 374,438.40/x
  3. Step 3: Cross multiply
    676,300.80x = 933,158.40 × 374,438.40
  4. Step 4: Simplify right side
    676,300.80x = 349,410,338,242.56
  5. Step 5: Solve for x
    x = 349,410,338,242.56/676,300.80
  6. Step 6: Final answer
    x = 516,649.30

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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.