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Finding the Fourth Proportional to 613,746.30, 846,740.70 and 612,800.13

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Solution

The fourth proportional to 613,746.30, 846,740.70 and 612,800.13 is: 845,435.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,746.30 : 846,740.70 = 612,800.13 : x
  2. Step 2: Convert to fraction form
    613,746.30/846,740.70 = 612,800.13/x
  3. Step 3: Cross multiply
    613,746.30x = 846,740.70 × 612,800.13
  4. Step 4: Simplify right side
    613,746.30x = 518,882,811,036.29
  5. Step 5: Solve for x
    x = 518,882,811,036.29/613,746.30
  6. Step 6: Final answer
    x = 845,435.34

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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.