Home / 882,681.28-1,218,064.32-500,699.88

Finding the Fourth Proportional to 882,681.28, 1,218,064.32 and 500,699.88

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Solution

The fourth proportional to 882,681.28, 1,218,064.32 and 500,699.88 is: 690,945.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,681.28 : 1,218,064.32 = 500,699.88 : x
  2. Step 2: Convert to fraction form
    882,681.28/1,218,064.32 = 500,699.88/x
  3. Step 3: Cross multiply
    882,681.28x = 1,218,064.32 × 500,699.88
  4. Step 4: Simplify right side
    882,681.28x = 609,884,658,856.28
  5. Step 5: Solve for x
    x = 609,884,658,856.28/882,681.28
  6. Step 6: Final answer
    x = 690,945.50

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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.