Home / 1,297,017.90-1,789,699.59-724,045.50

Finding the Fourth Proportional to 1,297,017.90, 1,789,699.59 and 724,045.50

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Solution

The fourth proportional to 1,297,017.90, 1,789,699.59 and 724,045.50 is: 999,079.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,017.90 : 1,789,699.59 = 724,045.50 : x
  2. Step 2: Convert to fraction form
    1,297,017.90/1,789,699.59 = 724,045.50/x
  3. Step 3: Cross multiply
    1,297,017.90x = 1,789,699.59 × 724,045.50
  4. Step 4: Simplify right side
    1,297,017.90x = 1,295,823,934,491.35
  5. Step 5: Solve for x
    x = 1,295,823,934,491.35/1,297,017.90
  6. Step 6: Final answer
    x = 999,079.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.