Home / 1,038,219.80-1,557,038.10-328,465.40

Finding the Fourth Proportional to 1,038,219.80, 1,557,038.10 and 328,465.40

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Solution

The fourth proportional to 1,038,219.80, 1,557,038.10 and 328,465.40 is: 492,605.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,219.80 : 1,557,038.10 = 328,465.40 : x
  2. Step 2: Convert to fraction form
    1,038,219.80/1,557,038.10 = 328,465.40/x
  3. Step 3: Cross multiply
    1,038,219.80x = 1,557,038.10 × 328,465.40
  4. Step 4: Simplify right side
    1,038,219.80x = 511,433,142,331.74
  5. Step 5: Solve for x
    x = 511,433,142,331.74/1,038,219.80
  6. Step 6: Final answer
    x = 492,605.85

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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.