Home / 697,208.40-1,045,812.60-649,969.20

Finding the Fourth Proportional to 697,208.40, 1,045,812.60 and 649,969.20

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Solution

The fourth proportional to 697,208.40, 1,045,812.60 and 649,969.20 is: 974,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,208.40 : 1,045,812.60 = 649,969.20 : x
  2. Step 2: Convert to fraction form
    697,208.40/1,045,812.60 = 649,969.20/x
  3. Step 3: Cross multiply
    697,208.40x = 1,045,812.60 × 649,969.20
  4. Step 4: Simplify right side
    697,208.40x = 679,745,978,971.92
  5. Step 5: Solve for x
    x = 679,745,978,971.92/697,208.40
  6. Step 6: Final answer
    x = 974,953.80

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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.