Home / 1,308,490.34-1,961,572.27-509,587.30

Finding the Fourth Proportional to 1,308,490.34, 1,961,572.27 and 509,587.30

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Solution

The fourth proportional to 1,308,490.34, 1,961,572.27 and 509,587.30 is: 763,927.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,490.34 : 1,961,572.27 = 509,587.30 : x
  2. Step 2: Convert to fraction form
    1,308,490.34/1,961,572.27 = 509,587.30/x
  3. Step 3: Cross multiply
    1,308,490.34x = 1,961,572.27 × 509,587.30
  4. Step 4: Simplify right side
    1,308,490.34x = 999,592,316,824.17
  5. Step 5: Solve for x
    x = 999,592,316,824.17/1,308,490.34
  6. Step 6: Final answer
    x = 763,927.93

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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.