Home / 1,020,702.45-1,408,558.24-561,807.19

Finding the Fourth Proportional to 1,020,702.45, 1,408,558.24 and 561,807.19

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Solution

The fourth proportional to 1,020,702.45, 1,408,558.24 and 561,807.19 is: 775,287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,702.45 : 1,408,558.24 = 561,807.19 : x
  2. Step 2: Convert to fraction form
    1,020,702.45/1,408,558.24 = 561,807.19/x
  3. Step 3: Cross multiply
    1,020,702.45x = 1,408,558.24 × 561,807.19
  4. Step 4: Simplify right side
    1,020,702.45x = 791,338,146,765.75
  5. Step 5: Solve for x
    x = 791,338,146,765.75/1,020,702.45
  6. Step 6: Final answer
    x = 775,287.79

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Double scale
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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.