Home / 1,328,565.60-1,992,848.40-487,445.40

Finding the Fourth Proportional to 1,328,565.60, 1,992,848.40 and 487,445.40

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Solution

The fourth proportional to 1,328,565.60, 1,992,848.40 and 487,445.40 is: 731,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,565.60 : 1,992,848.40 = 487,445.40 : x
  2. Step 2: Convert to fraction form
    1,328,565.60/1,992,848.40 = 487,445.40/x
  3. Step 3: Cross multiply
    1,328,565.60x = 1,992,848.40 × 487,445.40
  4. Step 4: Simplify right side
    1,328,565.60x = 971,404,785,477.36
  5. Step 5: Solve for x
    x = 971,404,785,477.36/1,328,565.60
  6. Step 6: Final answer
    x = 731,168.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.