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Finding the Fourth Proportional to 698,550.50, 963,999.69 and 380,598.50

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Solution

The fourth proportional to 698,550.50, 963,999.69 and 380,598.50 is: 525,225.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,550.50 : 963,999.69 = 380,598.50 : x
  2. Step 2: Convert to fraction form
    698,550.50/963,999.69 = 380,598.50/x
  3. Step 3: Cross multiply
    698,550.50x = 963,999.69 × 380,598.50
  4. Step 4: Simplify right side
    698,550.50x = 366,896,836,014.47
  5. Step 5: Solve for x
    x = 366,896,836,014.47/698,550.50
  6. Step 6: Final answer
    x = 525,225.93

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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.