Home / 459,518.16-688,646.67-290,736.35

Finding the Fourth Proportional to 459,518.16, 688,646.67 and 290,736.35

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Solution

The fourth proportional to 459,518.16, 688,646.67 and 290,736.35 is: 435,705.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,518.16 : 688,646.67 = 290,736.35 : x
  2. Step 2: Convert to fraction form
    459,518.16/688,646.67 = 290,736.35/x
  3. Step 3: Cross multiply
    459,518.16x = 688,646.67 × 290,736.35
  4. Step 4: Simplify right side
    459,518.16x = 200,214,619,275.46
  5. Step 5: Solve for x
    x = 200,214,619,275.46/459,518.16
  6. Step 6: Final answer
    x = 435,705.56

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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.