Home / 697,991.10-1,047,970.80-432,270.60

Finding the Fourth Proportional to 697,991.10, 1,047,970.80 and 432,270.60

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Solution

The fourth proportional to 697,991.10, 1,047,970.80 and 432,270.60 is: 649,015.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,991.10 : 1,047,970.80 = 432,270.60 : x
  2. Step 2: Convert to fraction form
    697,991.10/1,047,970.80 = 432,270.60/x
  3. Step 3: Cross multiply
    697,991.10x = 1,047,970.80 × 432,270.60
  4. Step 4: Simplify right side
    697,991.10x = 453,006,966,498.48
  5. Step 5: Solve for x
    x = 453,006,966,498.48/697,991.10
  6. Step 6: Final answer
    x = 649,015.39

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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.