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Finding the Fourth Proportional to 637,161.66, 955,206.81 and 426,155.58

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Solution

The fourth proportional to 637,161.66, 955,206.81 and 426,155.58 is: 638,875.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,161.66 : 955,206.81 = 426,155.58 : x
  2. Step 2: Convert to fraction form
    637,161.66/955,206.81 = 426,155.58/x
  3. Step 3: Cross multiply
    637,161.66x = 955,206.81 × 426,155.58
  4. Step 4: Simplify right side
    637,161.66x = 407,066,712,135.50
  5. Step 5: Solve for x
    x = 407,066,712,135.50/637,161.66
  6. Step 6: Final answer
    x = 638,875.09

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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.