Home / 810,376.80-1,216,659.60-473,762.40

Finding the Fourth Proportional to 810,376.80, 1,216,659.60 and 473,762.40

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Solution

The fourth proportional to 810,376.80, 1,216,659.60 and 473,762.40 is: 711,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,376.80 : 1,216,659.60 = 473,762.40 : x
  2. Step 2: Convert to fraction form
    810,376.80/1,216,659.60 = 473,762.40/x
  3. Step 3: Cross multiply
    810,376.80x = 1,216,659.60 × 473,762.40
  4. Step 4: Simplify right side
    810,376.80x = 576,407,572,079.04
  5. Step 5: Solve for x
    x = 576,407,572,079.04/810,376.80
  6. Step 6: Final answer
    x = 711,283.41

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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.