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Finding the Fourth Proportional to 478,547.60, 659,887.84 and 430,348.85

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Solution

The fourth proportional to 478,547.60, 659,887.84 and 430,348.85 is: 593,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,547.60 : 659,887.84 = 430,348.85 : x
  2. Step 2: Convert to fraction form
    478,547.60/659,887.84 = 430,348.85/x
  3. Step 3: Cross multiply
    478,547.60x = 659,887.84 × 430,348.85
  4. Step 4: Simplify right side
    478,547.60x = 283,981,968,697.67
  5. Step 5: Solve for x
    x = 283,981,968,697.67/478,547.60
  6. Step 6: Final answer
    x = 593,424.71

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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.