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Finding the Fourth Proportional to 519,547.29, 717,094.79 and 304,756.55

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Solution

The fourth proportional to 519,547.29, 717,094.79 and 304,756.55 is: 420,634.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,547.29 : 717,094.79 = 304,756.55 : x
  2. Step 2: Convert to fraction form
    519,547.29/717,094.79 = 304,756.55/x
  3. Step 3: Cross multiply
    519,547.29x = 717,094.79 × 304,756.55
  4. Step 4: Simplify right side
    519,547.29x = 218,539,334,223.38
  5. Step 5: Solve for x
    x = 218,539,334,223.38/519,547.29
  6. Step 6: Final answer
    x = 420,634.15

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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.