Home / 829,038.80-1,242,829.20-561,933.20

Finding the Fourth Proportional to 829,038.80, 1,242,829.20 and 561,933.20

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Solution

The fourth proportional to 829,038.80, 1,242,829.20 and 561,933.20 is: 842,405.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,038.80 : 1,242,829.20 = 561,933.20 : x
  2. Step 2: Convert to fraction form
    829,038.80/1,242,829.20 = 561,933.20/x
  3. Step 3: Cross multiply
    829,038.80x = 1,242,829.20 × 561,933.20
  4. Step 4: Simplify right side
    829,038.80x = 698,386,989,409.44
  5. Step 5: Solve for x
    x = 698,386,989,409.44/829,038.80
  6. Step 6: Final answer
    x = 842,405.67

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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.