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Finding the Fourth Proportional to 634,417.60, 875,269.20 and 362,289.28

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Solution

The fourth proportional to 634,417.60, 875,269.20 and 362,289.28 is: 499,829.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,417.60 : 875,269.20 = 362,289.28 : x
  2. Step 2: Convert to fraction form
    634,417.60/875,269.20 = 362,289.28/x
  3. Step 3: Cross multiply
    634,417.60x = 875,269.20 × 362,289.28
  4. Step 4: Simplify right side
    634,417.60x = 317,100,648,274.18
  5. Step 5: Solve for x
    x = 317,100,648,274.18/634,417.60
  6. Step 6: Final answer
    x = 499,829.53

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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.