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Finding the Fourth Proportional to 517,798.60, 714,487.71 and 302,898.04

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Solution

The fourth proportional to 517,798.60, 714,487.71 and 302,898.04 is: 417,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,798.60 : 714,487.71 = 302,898.04 : x
  2. Step 2: Convert to fraction form
    517,798.60/714,487.71 = 302,898.04/x
  3. Step 3: Cross multiply
    517,798.60x = 714,487.71 × 302,898.04
  4. Step 4: Simplify right side
    517,798.60x = 216,416,926,963.09
  5. Step 5: Solve for x
    x = 216,416,926,963.09/517,798.60
  6. Step 6: Final answer
    x = 417,955.80

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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.