Home / 1,138,031.40-1,570,465.00-621,774.20

Finding the Fourth Proportional to 1,138,031.40, 1,570,465.00 and 621,774.20

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Solution

The fourth proportional to 1,138,031.40, 1,570,465.00 and 621,774.20 is: 858,038.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,031.40 : 1,570,465.00 = 621,774.20 : x
  2. Step 2: Convert to fraction form
    1,138,031.40/1,570,465.00 = 621,774.20/x
  3. Step 3: Cross multiply
    1,138,031.40x = 1,570,465.00 × 621,774.20
  4. Step 4: Simplify right side
    1,138,031.40x = 976,474,623,706.38
  5. Step 5: Solve for x
    x = 976,474,623,706.38/1,138,031.40
  6. Step 6: Final answer
    x = 858,038.38

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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.