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Finding the Fourth Proportional to 659,485.98, 910,090.72 and 372,999.98

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Solution

The fourth proportional to 659,485.98, 910,090.72 and 372,999.98 is: 514,740.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,485.98 : 910,090.72 = 372,999.98 : x
  2. Step 2: Convert to fraction form
    659,485.98/910,090.72 = 372,999.98/x
  3. Step 3: Cross multiply
    659,485.98x = 910,090.72 × 372,999.98
  4. Step 4: Simplify right side
    659,485.98x = 339,463,820,358.19
  5. Step 5: Solve for x
    x = 339,463,820,358.19/659,485.98
  6. Step 6: Final answer
    x = 514,740.01

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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.