Home / 829,036.80-1,242,826.20-561,931.20

Finding the Fourth Proportional to 829,036.80, 1,242,826.20 and 561,931.20

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Solution

The fourth proportional to 829,036.80, 1,242,826.20 and 561,931.20 is: 842,402.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,036.80 : 1,242,826.20 = 561,931.20 : x
  2. Step 2: Convert to fraction form
    829,036.80/1,242,826.20 = 561,931.20/x
  3. Step 3: Cross multiply
    829,036.80x = 1,242,826.20 × 561,931.20
  4. Step 4: Simplify right side
    829,036.80x = 698,382,817,957.44
  5. Step 5: Solve for x
    x = 698,382,817,957.44/829,036.80
  6. Step 6: Final answer
    x = 842,402.67

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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.