Home / 692,034.08-955,007.20-390,228.16

Finding the Fourth Proportional to 692,034.08, 955,007.20 and 390,228.16

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Solution

The fourth proportional to 692,034.08, 955,007.20 and 390,228.16 is: 538,514.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,034.08 : 955,007.20 = 390,228.16 : x
  2. Step 2: Convert to fraction form
    692,034.08/955,007.20 = 390,228.16/x
  3. Step 3: Cross multiply
    692,034.08x = 955,007.20 × 390,228.16
  4. Step 4: Simplify right side
    692,034.08x = 372,670,702,442.75
  5. Step 5: Solve for x
    x = 372,670,702,442.75/692,034.08
  6. Step 6: Final answer
    x = 538,514.96

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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.