Home / 815,710.56-1,125,814.32-471,557.76

Finding the Fourth Proportional to 815,710.56, 1,125,814.32 and 471,557.76

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Solution

The fourth proportional to 815,710.56, 1,125,814.32 and 471,557.76 is: 650,827.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,710.56 : 1,125,814.32 = 471,557.76 : x
  2. Step 2: Convert to fraction form
    815,710.56/1,125,814.32 = 471,557.76/x
  3. Step 3: Cross multiply
    815,710.56x = 1,125,814.32 × 471,557.76
  4. Step 4: Simplify right side
    815,710.56x = 530,886,478,915.12
  5. Step 5: Solve for x
    x = 530,886,478,915.12/815,710.56
  6. Step 6: Final answer
    x = 650,827.03

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1.5x scale

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.