Home / 855,630.70-1,281,890.85-697,000.30

Finding the Fourth Proportional to 855,630.70, 1,281,890.85 and 697,000.30

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Solution

The fourth proportional to 855,630.70, 1,281,890.85 and 697,000.30 is: 1,044,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,630.70 : 1,281,890.85 = 697,000.30 : x
  2. Step 2: Convert to fraction form
    855,630.70/1,281,890.85 = 697,000.30/x
  3. Step 3: Cross multiply
    855,630.70x = 1,281,890.85 × 697,000.30
  4. Step 4: Simplify right side
    855,630.70x = 893,478,307,017.26
  5. Step 5: Solve for x
    x = 893,478,307,017.26/855,630.70
  6. Step 6: Final answer
    x = 1,044,233.58

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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.