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Finding the Fourth Proportional to 884,330.16, 1,220,408.40 and 502,421.76

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Solution

The fourth proportional to 884,330.16, 1,220,408.40 and 502,421.76 is: 693,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,330.16 : 1,220,408.40 = 502,421.76 : x
  2. Step 2: Convert to fraction form
    884,330.16/1,220,408.40 = 502,421.76/x
  3. Step 3: Cross multiply
    884,330.16x = 1,220,408.40 × 502,421.76
  4. Step 4: Simplify right side
    884,330.16x = 613,159,736,246.78
  5. Step 5: Solve for x
    x = 613,159,736,246.78/884,330.16
  6. Step 6: Final answer
    x = 693,360.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.