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Finding the Fourth Proportional to 586,987.80, 878,148.90 and 508,968.60

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Solution

The fourth proportional to 586,987.80, 878,148.90 and 508,968.60 is: 761,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,987.80 : 878,148.90 = 508,968.60 : x
  2. Step 2: Convert to fraction form
    586,987.80/878,148.90 = 508,968.60/x
  3. Step 3: Cross multiply
    586,987.80x = 878,148.90 × 508,968.60
  4. Step 4: Simplify right side
    586,987.80x = 446,950,216,224.54
  5. Step 5: Solve for x
    x = 446,950,216,224.54/586,987.80
  6. Step 6: Final answer
    x = 761,430.16

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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.