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Finding the Fourth Proportional to 586,060, 808,763.22 and 317,788

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Solution

The fourth proportional to 586,060, 808,763.22 and 317,788 is: 438,547.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,060 : 808,763.22 = 317,788 : x
  2. Step 2: Convert to fraction form
    586,060/808,763.22 = 317,788/x
  3. Step 3: Cross multiply
    586,060x = 808,763.22 × 317,788
  4. Step 4: Simplify right side
    586,060x = 257,015,246,157.36
  5. Step 5: Solve for x
    x = 257,015,246,157.36/586,060
  6. Step 6: Final answer
    x = 438,547.67

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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.