Home / 849,761.60-1,271,877.60-661,755.20

Finding the Fourth Proportional to 849,761.60, 1,271,877.60 and 661,755.20

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Solution

The fourth proportional to 849,761.60, 1,271,877.60 and 661,755.20 is: 990,479.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,761.60 : 1,271,877.60 = 661,755.20 : x
  2. Step 2: Convert to fraction form
    849,761.60/1,271,877.60 = 661,755.20/x
  3. Step 3: Cross multiply
    849,761.60x = 1,271,877.60 × 661,755.20
  4. Step 4: Simplify right side
    849,761.60x = 841,671,615,563.52
  5. Step 5: Solve for x
    x = 841,671,615,563.52/849,761.60
  6. Step 6: Final answer
    x = 990,479.70

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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.