Home / 988,038.72-1,363,475.52-558,309.60

Finding the Fourth Proportional to 988,038.72, 1,363,475.52 and 558,309.60

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Solution

The fourth proportional to 988,038.72, 1,363,475.52 and 558,309.60 is: 770,457.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,038.72 : 1,363,475.52 = 558,309.60 : x
  2. Step 2: Convert to fraction form
    988,038.72/1,363,475.52 = 558,309.60/x
  3. Step 3: Cross multiply
    988,038.72x = 1,363,475.52 × 558,309.60
  4. Step 4: Simplify right side
    988,038.72x = 761,241,472,180.99
  5. Step 5: Solve for x
    x = 761,241,472,180.99/988,038.72
  6. Step 6: Final answer
    x = 770,457.13

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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.