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Finding the Fourth Proportional to 718,316.52, 990,246.42 and 565,088.37

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Solution

The fourth proportional to 718,316.52, 990,246.42 and 565,088.37 is: 779,011.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,316.52 : 990,246.42 = 565,088.37 : x
  2. Step 2: Convert to fraction form
    718,316.52/990,246.42 = 565,088.37/x
  3. Step 3: Cross multiply
    718,316.52x = 990,246.42 × 565,088.37
  4. Step 4: Simplify right side
    718,316.52x = 559,576,735,376.14
  5. Step 5: Solve for x
    x = 559,576,735,376.14/718,316.52
  6. Step 6: Final answer
    x = 779,011.37

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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.