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Finding the Fourth Proportional to 612,316.51, 918,158.33 and 275,068.81

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Solution

The fourth proportional to 612,316.51, 918,158.33 and 275,068.81 is: 412,461.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,316.51 : 918,158.33 = 275,068.81 : x
  2. Step 2: Convert to fraction form
    612,316.51/918,158.33 = 275,068.81/x
  3. Step 3: Cross multiply
    612,316.51x = 918,158.33 × 275,068.81
  4. Step 4: Simplify right side
    612,316.51x = 252,556,714,633.90
  5. Step 5: Solve for x
    x = 252,556,714,633.90/612,316.51
  6. Step 6: Final answer
    x = 412,461.06

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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.