Home / 905,724.60-1,359,461.70-551,430.60

Finding the Fourth Proportional to 905,724.60, 1,359,461.70 and 551,430.60

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Solution

The fourth proportional to 905,724.60, 1,359,461.70 and 551,430.60 is: 827,678.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,724.60 : 1,359,461.70 = 551,430.60 : x
  2. Step 2: Convert to fraction form
    905,724.60/1,359,461.70 = 551,430.60/x
  3. Step 3: Cross multiply
    905,724.60x = 1,359,461.70 × 551,430.60
  4. Step 4: Simplify right side
    905,724.60x = 749,648,780,908.02
  5. Step 5: Solve for x
    x = 749,648,780,908.02/905,724.60
  6. Step 6: Final answer
    x = 827,678.50

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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.