Home / 1,129,732.95-1,559,029.53-620,435.32

Finding the Fourth Proportional to 1,129,732.95, 1,559,029.53 and 620,435.32

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Solution

The fourth proportional to 1,129,732.95, 1,559,029.53 and 620,435.32 is: 856,199.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,732.95 : 1,559,029.53 = 620,435.32 : x
  2. Step 2: Convert to fraction form
    1,129,732.95/1,559,029.53 = 620,435.32/x
  3. Step 3: Cross multiply
    1,129,732.95x = 1,559,029.53 × 620,435.32
  4. Step 4: Simplify right side
    1,129,732.95x = 967,276,985,335.00
  5. Step 5: Solve for x
    x = 967,276,985,335.00/1,129,732.95
  6. Step 6: Final answer
    x = 856,199.68

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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.