Home / 918,239.63-1,376,570.59-319,122.94

Finding the Fourth Proportional to 918,239.63, 1,376,570.59 and 319,122.94

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Solution

The fourth proportional to 918,239.63, 1,376,570.59 and 319,122.94 is: 478,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,239.63 : 1,376,570.59 = 319,122.94 : x
  2. Step 2: Convert to fraction form
    918,239.63/1,376,570.59 = 319,122.94/x
  3. Step 3: Cross multiply
    918,239.63x = 1,376,570.59 × 319,122.94
  4. Step 4: Simplify right side
    918,239.63x = 439,295,251,691.42
  5. Step 5: Solve for x
    x = 439,295,251,691.42/918,239.63
  6. Step 6: Final answer
    x = 478,410.25

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1.5x scale

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.