Home / 775,078.16-1,069,608.12-435,547.76

Finding the Fourth Proportional to 775,078.16, 1,069,608.12 and 435,547.76

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Solution

The fourth proportional to 775,078.16, 1,069,608.12 and 435,547.76 is: 601,056.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,078.16 : 1,069,608.12 = 435,547.76 : x
  2. Step 2: Convert to fraction form
    775,078.16/1,069,608.12 = 435,547.76/x
  3. Step 3: Cross multiply
    775,078.16x = 1,069,608.12 × 435,547.76
  4. Step 4: Simplify right side
    775,078.16x = 465,865,420,743.81
  5. Step 5: Solve for x
    x = 465,865,420,743.81/775,078.16
  6. Step 6: Final answer
    x = 601,056.05

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Double scale
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1.5x scale

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.