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Finding the Fourth Proportional to 610,303.34, 915,301.83 and 290,257.70

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Solution

The fourth proportional to 610,303.34, 915,301.83 and 290,257.70 is: 435,313.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,303.34 : 915,301.83 = 290,257.70 : x
  2. Step 2: Convert to fraction form
    610,303.34/915,301.83 = 290,257.70/x
  3. Step 3: Cross multiply
    610,303.34x = 915,301.83 × 290,257.70
  4. Step 4: Simplify right side
    610,303.34x = 265,673,403,981.59
  5. Step 5: Solve for x
    x = 265,673,403,981.59/610,303.34
  6. Step 6: Final answer
    x = 435,313.70

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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.