Home / 987,287.60-1,480,931.40-910,305.20

Finding the Fourth Proportional to 987,287.60, 1,480,931.40 and 910,305.20

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Solution

The fourth proportional to 987,287.60, 1,480,931.40 and 910,305.20 is: 1,365,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,287.60 : 1,480,931.40 = 910,305.20 : x
  2. Step 2: Convert to fraction form
    987,287.60/1,480,931.40 = 910,305.20/x
  3. Step 3: Cross multiply
    987,287.60x = 1,480,931.40 × 910,305.20
  4. Step 4: Simplify right side
    987,287.60x = 1,348,099,554,263.28
  5. Step 5: Solve for x
    x = 1,348,099,554,263.28/987,287.60
  6. Step 6: Final answer
    x = 1,365,457.80

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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.