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Finding the Fourth Proportional to 679,303.56, 937,440.96 and 373,411.32

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Solution

The fourth proportional to 679,303.56, 937,440.96 and 373,411.32 is: 515,308.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,303.56 : 937,440.96 = 373,411.32 : x
  2. Step 2: Convert to fraction form
    679,303.56/937,440.96 = 373,411.32/x
  3. Step 3: Cross multiply
    679,303.56x = 937,440.96 × 373,411.32
  4. Step 4: Simplify right side
    679,303.56x = 350,051,066,295.67
  5. Step 5: Solve for x
    x = 350,051,066,295.67/679,303.56
  6. Step 6: Final answer
    x = 515,308.75

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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.