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Finding the Fourth Proportional to 879,114.80, 1,317,700.20 and 346,458.80

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Solution

The fourth proportional to 879,114.80, 1,317,700.20 and 346,458.80 is: 519,305.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,114.80 : 1,317,700.20 = 346,458.80 : x
  2. Step 2: Convert to fraction form
    879,114.80/1,317,700.20 = 346,458.80/x
  3. Step 3: Cross multiply
    879,114.80x = 1,317,700.20 × 346,458.80
  4. Step 4: Simplify right side
    879,114.80x = 456,528,830,051.76
  5. Step 5: Solve for x
    x = 456,528,830,051.76/879,114.80
  6. Step 6: Final answer
    x = 519,305.14

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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.