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Finding the Fourth Proportional to 405,001.20, 607,501.80 and 375,476.70

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Solution

The fourth proportional to 405,001.20, 607,501.80 and 375,476.70 is: 563,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,001.20 : 607,501.80 = 375,476.70 : x
  2. Step 2: Convert to fraction form
    405,001.20/607,501.80 = 375,476.70/x
  3. Step 3: Cross multiply
    405,001.20x = 607,501.80 × 375,476.70
  4. Step 4: Simplify right side
    405,001.20x = 228,102,771,108.06
  5. Step 5: Solve for x
    x = 228,102,771,108.06/405,001.20
  6. Step 6: Final answer
    x = 563,215.05

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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.