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Finding the Fourth Proportional to 530,690.70, 732,166.37 and 347,036.81

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Solution

The fourth proportional to 530,690.70, 732,166.37 and 347,036.81 is: 478,788.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,690.70 : 732,166.37 = 347,036.81 : x
  2. Step 2: Convert to fraction form
    530,690.70/732,166.37 = 347,036.81/x
  3. Step 3: Cross multiply
    530,690.70x = 732,166.37 × 347,036.81
  4. Step 4: Simplify right side
    530,690.70x = 254,088,676,363.41
  5. Step 5: Solve for x
    x = 254,088,676,363.41/530,690.70
  6. Step 6: Final answer
    x = 478,788.64

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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.