Home / 1,535,393.60-2,118,157.92-890,440

Finding the Fourth Proportional to 1,535,393.60, 2,118,157.92 and 890,440

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Solution

The fourth proportional to 1,535,393.60, 2,118,157.92 and 890,440 is: 1,228,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535,393.60 : 2,118,157.92 = 890,440 : x
  2. Step 2: Convert to fraction form
    1,535,393.60/2,118,157.92 = 890,440/x
  3. Step 3: Cross multiply
    1,535,393.60x = 2,118,157.92 × 890,440
  4. Step 4: Simplify right side
    1,535,393.60x = 1,886,092,538,284.80
  5. Step 5: Solve for x
    x = 1,886,092,538,284.80/1,535,393.60
  6. Step 6: Final answer
    x = 1,228,409.80

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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.