Home / 860,348.93-1,290,547.89-291,731.63

Finding the Fourth Proportional to 860,348.93, 1,290,547.89 and 291,731.63

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Solution

The fourth proportional to 860,348.93, 1,290,547.89 and 291,731.63 is: 437,605.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,348.93 : 1,290,547.89 = 291,731.63 : x
  2. Step 2: Convert to fraction form
    860,348.93/1,290,547.89 = 291,731.63/x
  3. Step 3: Cross multiply
    860,348.93x = 1,290,547.89 × 291,731.63
  4. Step 4: Simplify right side
    860,348.93x = 376,493,633,090.02
  5. Step 5: Solve for x
    x = 376,493,633,090.02/860,348.93
  6. Step 6: Final answer
    x = 437,605.75

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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.