Home / 906,783.90-1,359,009.45-551,420.70

Finding the Fourth Proportional to 906,783.90, 1,359,009.45 and 551,420.70

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Solution

The fourth proportional to 906,783.90, 1,359,009.45 and 551,420.70 is: 826,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,783.90 : 1,359,009.45 = 551,420.70 : x
  2. Step 2: Convert to fraction form
    906,783.90/1,359,009.45 = 551,420.70/x
  3. Step 3: Cross multiply
    906,783.90x = 1,359,009.45 × 551,420.70
  4. Step 4: Simplify right side
    906,783.90x = 749,385,942,225.62
  5. Step 5: Solve for x
    x = 749,385,942,225.62/906,783.90
  6. Step 6: Final answer
    x = 826,421.76

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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.