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Finding the Fourth Proportional to 685,058.40, 960,656.40 and 685,058.40

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Solution

The fourth proportional to 685,058.40, 960,656.40 and 685,058.40 is: 960,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,058.40 : 960,656.40 = 685,058.40 : x
  2. Step 2: Convert to fraction form
    685,058.40/960,656.40 = 685,058.40/x
  3. Step 3: Cross multiply
    685,058.40x = 960,656.40 × 685,058.40
  4. Step 4: Simplify right side
    685,058.40x = 658,105,736,333.76
  5. Step 5: Solve for x
    x = 658,105,736,333.76/685,058.40
  6. Step 6: Final answer
    x = 960,656.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.