Home / 674,683.20-931,077.74-368,779.76

Finding the Fourth Proportional to 674,683.20, 931,077.74 and 368,779.76

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Solution

The fourth proportional to 674,683.20, 931,077.74 and 368,779.76 is: 508,924.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,683.20 : 931,077.74 = 368,779.76 : x
  2. Step 2: Convert to fraction form
    674,683.20/931,077.74 = 368,779.76/x
  3. Step 3: Cross multiply
    674,683.20x = 931,077.74 × 368,779.76
  4. Step 4: Simplify right side
    674,683.20x = 343,362,625,498.54
  5. Step 5: Solve for x
    x = 343,362,625,498.54/674,683.20
  6. Step 6: Final answer
    x = 508,924.23

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1.5x scale

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.