Home / 1,020,439.23-1,530,880.28-310,448.81

Finding the Fourth Proportional to 1,020,439.23, 1,530,880.28 and 310,448.81

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Solution

The fourth proportional to 1,020,439.23, 1,530,880.28 and 310,448.81 is: 465,740.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,439.23 : 1,530,880.28 = 310,448.81 : x
  2. Step 2: Convert to fraction form
    1,020,439.23/1,530,880.28 = 310,448.81/x
  3. Step 3: Cross multiply
    1,020,439.23x = 1,530,880.28 × 310,448.81
  4. Step 4: Simplify right side
    1,020,439.23x = 475,259,964,617.61
  5. Step 5: Solve for x
    x = 475,259,964,617.61/1,020,439.23
  6. Step 6: Final answer
    x = 465,740.59

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Double scale
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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.