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Finding the Fourth Proportional to 526,303.86, 726,120.90 and 429,340.08

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Solution

The fourth proportional to 526,303.86, 726,120.90 and 429,340.08 is: 592,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,303.86 : 726,120.90 = 429,340.08 : x
  2. Step 2: Convert to fraction form
    526,303.86/726,120.90 = 429,340.08/x
  3. Step 3: Cross multiply
    526,303.86x = 726,120.90 × 429,340.08
  4. Step 4: Simplify right side
    526,303.86x = 311,752,805,295.67
  5. Step 5: Solve for x
    x = 311,752,805,295.67/526,303.86
  6. Step 6: Final answer
    x = 592,343.76

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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.