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Finding the Fourth Proportional to 506,904.93, 699,501.02 and 289,081.62

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Solution

The fourth proportional to 506,904.93, 699,501.02 and 289,081.62 is: 398,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,904.93 : 699,501.02 = 289,081.62 : x
  2. Step 2: Convert to fraction form
    506,904.93/699,501.02 = 289,081.62/x
  3. Step 3: Cross multiply
    506,904.93x = 699,501.02 × 289,081.62
  4. Step 4: Simplify right side
    506,904.93x = 202,212,886,607.84
  5. Step 5: Solve for x
    x = 202,212,886,607.84/506,904.93
  6. Step 6: Final answer
    x = 398,916.79

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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.