Home / 679,756.48-1,019,038.56-258,752.32

Finding the Fourth Proportional to 679,756.48, 1,019,038.56 and 258,752.32

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Solution

The fourth proportional to 679,756.48, 1,019,038.56 and 258,752.32 is: 387,901.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,756.48 : 1,019,038.56 = 258,752.32 : x
  2. Step 2: Convert to fraction form
    679,756.48/1,019,038.56 = 258,752.32/x
  3. Step 3: Cross multiply
    679,756.48x = 1,019,038.56 × 258,752.32
  4. Step 4: Simplify right side
    679,756.48x = 263,678,591,569.46
  5. Step 5: Solve for x
    x = 263,678,591,569.46/679,756.48
  6. Step 6: Final answer
    x = 387,901.55

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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.