Home / 1,038,346.80-1,557,568.80-328,430.40

Finding the Fourth Proportional to 1,038,346.80, 1,557,568.80 and 328,430.40

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Solution

The fourth proportional to 1,038,346.80, 1,557,568.80 and 328,430.40 is: 492,660.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,346.80 : 1,557,568.80 = 328,430.40 : x
  2. Step 2: Convert to fraction form
    1,038,346.80/1,557,568.80 = 328,430.40/x
  3. Step 3: Cross multiply
    1,038,346.80x = 1,557,568.80 × 328,430.40
  4. Step 4: Simplify right side
    1,038,346.80x = 511,552,944,011.52
  5. Step 5: Solve for x
    x = 511,552,944,011.52/1,038,346.80
  6. Step 6: Final answer
    x = 492,660.97

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1.5x scale

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.