Home / 975,544.20-1,345,661.64-644,402.16

Finding the Fourth Proportional to 975,544.20, 1,345,661.64 and 644,402.16

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Solution

The fourth proportional to 975,544.20, 1,345,661.64 and 644,402.16 is: 888,885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,544.20 : 1,345,661.64 = 644,402.16 : x
  2. Step 2: Convert to fraction form
    975,544.20/1,345,661.64 = 644,402.16/x
  3. Step 3: Cross multiply
    975,544.20x = 1,345,661.64 × 644,402.16
  4. Step 4: Simplify right side
    975,544.20x = 867,147,267,445.14
  5. Step 5: Solve for x
    x = 867,147,267,445.14/975,544.20
  6. Step 6: Final answer
    x = 888,885.68

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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.