Home / 989,822.70-1,484,782.65-517,430.70

Finding the Fourth Proportional to 989,822.70, 1,484,782.65 and 517,430.70

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Solution

The fourth proportional to 989,822.70, 1,484,782.65 and 517,430.70 is: 776,171.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,822.70 : 1,484,782.65 = 517,430.70 : x
  2. Step 2: Convert to fraction form
    989,822.70/1,484,782.65 = 517,430.70/x
  3. Step 3: Cross multiply
    989,822.70x = 1,484,782.65 × 517,430.70
  4. Step 4: Simplify right side
    989,822.70x = 768,272,125,937.36
  5. Step 5: Solve for x
    x = 768,272,125,937.36/989,822.70
  6. Step 6: Final answer
    x = 776,171.46

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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.