Home / 753,018.42-1,038,287.36-561,699.66

Finding the Fourth Proportional to 753,018.42, 1,038,287.36 and 561,699.66

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Solution

The fourth proportional to 753,018.42, 1,038,287.36 and 561,699.66 is: 774,490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,018.42 : 1,038,287.36 = 561,699.66 : x
  2. Step 2: Convert to fraction form
    753,018.42/1,038,287.36 = 561,699.66/x
  3. Step 3: Cross multiply
    753,018.42x = 1,038,287.36 × 561,699.66
  4. Step 4: Simplify right side
    753,018.42x = 583,205,662,392.12
  5. Step 5: Solve for x
    x = 583,205,662,392.12/753,018.42
  6. Step 6: Final answer
    x = 774,490.56

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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.