Home / 1,020,424.10-1,530,580.79-310,396.79

Finding the Fourth Proportional to 1,020,424.10, 1,530,580.79 and 310,396.79

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Solution

The fourth proportional to 1,020,424.10, 1,530,580.79 and 310,396.79 is: 465,578.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,424.10 : 1,530,580.79 = 310,396.79 : x
  2. Step 2: Convert to fraction form
    1,020,424.10/1,530,580.79 = 310,396.79/x
  3. Step 3: Cross multiply
    1,020,424.10x = 1,530,580.79 × 310,396.79
  4. Step 4: Simplify right side
    1,020,424.10x = 475,087,368,654.11
  5. Step 5: Solve for x
    x = 475,087,368,654.11/1,020,424.10
  6. Step 6: Final answer
    x = 465,578.35

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1.5x scale

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.