Home / 1,129,980.63-1,559,384.28-620,683.05

Finding the Fourth Proportional to 1,129,980.63, 1,559,384.28 and 620,683.05

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Solution

The fourth proportional to 1,129,980.63, 1,559,384.28 and 620,683.05 is: 856,548.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,980.63 : 1,559,384.28 = 620,683.05 : x
  2. Step 2: Convert to fraction form
    1,129,980.63/1,559,384.28 = 620,683.05/x
  3. Step 3: Cross multiply
    1,129,980.63x = 1,559,384.28 × 620,683.05
  4. Step 4: Simplify right side
    1,129,980.63x = 967,883,391,032.45
  5. Step 5: Solve for x
    x = 967,883,391,032.45/1,129,980.63
  6. Step 6: Final answer
    x = 856,548.66

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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.