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Finding the Fourth Proportional to 617,918.60, 926,877.90 and 477,950.60

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Solution

The fourth proportional to 617,918.60, 926,877.90 and 477,950.60 is: 716,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,918.60 : 926,877.90 = 477,950.60 : x
  2. Step 2: Convert to fraction form
    617,918.60/926,877.90 = 477,950.60/x
  3. Step 3: Cross multiply
    617,918.60x = 926,877.90 × 477,950.60
  4. Step 4: Simplify right side
    617,918.60x = 443,001,848,431.74
  5. Step 5: Solve for x
    x = 443,001,848,431.74/617,918.60
  6. Step 6: Final answer
    x = 716,925.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.