Home / 819,117.72-1,130,387.73-456,564.60

Finding the Fourth Proportional to 819,117.72, 1,130,387.73 and 456,564.60

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Solution

The fourth proportional to 819,117.72, 1,130,387.73 and 456,564.60 is: 630,062.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,117.72 : 1,130,387.73 = 456,564.60 : x
  2. Step 2: Convert to fraction form
    819,117.72/1,130,387.73 = 456,564.60/x
  3. Step 3: Cross multiply
    819,117.72x = 1,130,387.73 × 456,564.60
  4. Step 4: Simplify right side
    819,117.72x = 516,095,021,792.36
  5. Step 5: Solve for x
    x = 516,095,021,792.36/819,117.72
  6. Step 6: Final answer
    x = 630,062.09

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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.