Home / 1,020,397.47-1,530,066.75-300,645.74

Finding the Fourth Proportional to 1,020,397.47, 1,530,066.75 and 300,645.74

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Solution

The fourth proportional to 1,020,397.47, 1,530,066.75 and 300,645.74 is: 450,812.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,397.47 : 1,530,066.75 = 300,645.74 : x
  2. Step 2: Convert to fraction form
    1,020,397.47/1,530,066.75 = 300,645.74/x
  3. Step 3: Cross multiply
    1,020,397.47x = 1,530,066.75 × 300,645.74
  4. Step 4: Simplify right side
    1,020,397.47x = 460,008,042,652.81
  5. Step 5: Solve for x
    x = 460,008,042,652.81/1,020,397.47
  6. Step 6: Final answer
    x = 450,812.61

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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.