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Finding the Fourth Proportional to 646,647.56, 892,064.58 and 502,420.58

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Solution

The fourth proportional to 646,647.56, 892,064.58 and 502,420.58 is: 693,100.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,647.56 : 892,064.58 = 502,420.58 : x
  2. Step 2: Convert to fraction form
    646,647.56/892,064.58 = 502,420.58/x
  3. Step 3: Cross multiply
    646,647.56x = 892,064.58 × 502,420.58
  4. Step 4: Simplify right side
    646,647.56x = 448,191,603,681.06
  5. Step 5: Solve for x
    x = 448,191,603,681.06/646,647.56
  6. Step 6: Final answer
    x = 693,100.28

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1.5x scale

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.