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Finding the Fourth Proportional to 525,051.80, 787,577.70 and 502,015.40

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Solution

The fourth proportional to 525,051.80, 787,577.70 and 502,015.40 is: 753,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,051.80 : 787,577.70 = 502,015.40 : x
  2. Step 2: Convert to fraction form
    525,051.80/787,577.70 = 502,015.40/x
  3. Step 3: Cross multiply
    525,051.80x = 787,577.70 × 502,015.40
  4. Step 4: Simplify right side
    525,051.80x = 395,376,134,096.58
  5. Step 5: Solve for x
    x = 395,376,134,096.58/525,051.80
  6. Step 6: Final answer
    x = 753,023.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.