Home / 718,316.34-1,077,632.19-212,916.30

Finding the Fourth Proportional to 718,316.34, 1,077,632.19 and 212,916.30

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Solution

The fourth proportional to 718,316.34, 1,077,632.19 and 212,916.30 is: 319,421.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,316.34 : 1,077,632.19 = 212,916.30 : x
  2. Step 2: Convert to fraction form
    718,316.34/1,077,632.19 = 212,916.30/x
  3. Step 3: Cross multiply
    718,316.34x = 1,077,632.19 × 212,916.30
  4. Step 4: Simplify right side
    718,316.34x = 229,445,458,655.70
  5. Step 5: Solve for x
    x = 229,445,458,655.70/718,316.34
  6. Step 6: Final answer
    x = 319,421.19

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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.