Home / 1,138,031.61-1,570,465.27-621,774.40

Finding the Fourth Proportional to 1,138,031.61, 1,570,465.27 and 621,774.40

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Solution

The fourth proportional to 1,138,031.61, 1,570,465.27 and 621,774.40 is: 858,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,031.61 : 1,570,465.27 = 621,774.40 : x
  2. Step 2: Convert to fraction form
    1,138,031.61/1,570,465.27 = 621,774.40/x
  3. Step 3: Cross multiply
    1,138,031.61x = 1,570,465.27 × 621,774.40
  4. Step 4: Simplify right side
    1,138,031.61x = 976,475,090,013.89
  5. Step 5: Solve for x
    x = 976,475,090,013.89/1,138,031.61
  6. Step 6: Final answer
    x = 858,038.64

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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.