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Finding the Fourth Proportional to 616,220.40, 922,775.40 and 491,804.40

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Solution

The fourth proportional to 616,220.40, 922,775.40 and 491,804.40 is: 736,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,220.40 : 922,775.40 = 491,804.40 : x
  2. Step 2: Convert to fraction form
    616,220.40/922,775.40 = 491,804.40/x
  3. Step 3: Cross multiply
    616,220.40x = 922,775.40 × 491,804.40
  4. Step 4: Simplify right side
    616,220.40x = 453,825,001,931.76
  5. Step 5: Solve for x
    x = 453,825,001,931.76/616,220.40
  6. Step 6: Final answer
    x = 736,465.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.