Home / 1,038,651.80-1,557,686.10-328,897.40

Finding the Fourth Proportional to 1,038,651.80, 1,557,686.10 and 328,897.40

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Solution

The fourth proportional to 1,038,651.80, 1,557,686.10 and 328,897.40 is: 493,253.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,651.80 : 1,557,686.10 = 328,897.40 : x
  2. Step 2: Convert to fraction form
    1,038,651.80/1,557,686.10 = 328,897.40/x
  3. Step 3: Cross multiply
    1,038,651.80x = 1,557,686.10 × 328,897.40
  4. Step 4: Simplify right side
    1,038,651.80x = 512,318,908,306.14
  5. Step 5: Solve for x
    x = 512,318,908,306.14/1,038,651.80
  6. Step 6: Final answer
    x = 493,253.76

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Double scale
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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.