Home / 854,210.79-1,178,751.69-472,207.50

Finding the Fourth Proportional to 854,210.79, 1,178,751.69 and 472,207.50

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Solution

The fourth proportional to 854,210.79, 1,178,751.69 and 472,207.50 is: 651,613.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,210.79 : 1,178,751.69 = 472,207.50 : x
  2. Step 2: Convert to fraction form
    854,210.79/1,178,751.69 = 472,207.50/x
  3. Step 3: Cross multiply
    854,210.79x = 1,178,751.69 × 472,207.50
  4. Step 4: Simplify right side
    854,210.79x = 556,615,388,655.68
  5. Step 5: Solve for x
    x = 556,615,388,655.68/854,210.79
  6. Step 6: Final answer
    x = 651,613.62

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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.