Home / 1,078,417.70-1,617,626.55-1,064,420.90

Finding the Fourth Proportional to 1,078,417.70, 1,617,626.55 and 1,064,420.90

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Solution

The fourth proportional to 1,078,417.70, 1,617,626.55 and 1,064,420.90 is: 1,596,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,417.70 : 1,617,626.55 = 1,064,420.90 : x
  2. Step 2: Convert to fraction form
    1,078,417.70/1,617,626.55 = 1,064,420.90/x
  3. Step 3: Cross multiply
    1,078,417.70x = 1,617,626.55 × 1,064,420.90
  4. Step 4: Simplify right side
    1,078,417.70x = 1,721,835,508,214.90
  5. Step 5: Solve for x
    x = 1,721,835,508,214.90/1,078,417.70
  6. Step 6: Final answer
    x = 1,596,631.35

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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.