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Finding the Fourth Proportional to 646,011.06, 891,495.27 and 359,598.81

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Solution

The fourth proportional to 646,011.06, 891,495.27 and 359,598.81 is: 496,246.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,011.06 : 891,495.27 = 359,598.81 : x
  2. Step 2: Convert to fraction form
    646,011.06/891,495.27 = 359,598.81/x
  3. Step 3: Cross multiply
    646,011.06x = 891,495.27 × 359,598.81
  4. Step 4: Simplify right side
    646,011.06x = 320,580,638,212.63
  5. Step 5: Solve for x
    x = 320,580,638,212.63/646,011.06
  6. Step 6: Final answer
    x = 496,246.36

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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.