Home / 989,643.44-1,484,366.72-457,156.77

Finding the Fourth Proportional to 989,643.44, 1,484,366.72 and 457,156.77

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Solution

The fourth proportional to 989,643.44, 1,484,366.72 and 457,156.77 is: 685,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,643.44 : 1,484,366.72 = 457,156.77 : x
  2. Step 2: Convert to fraction form
    989,643.44/1,484,366.72 = 457,156.77/x
  3. Step 3: Cross multiply
    989,643.44x = 1,484,366.72 × 457,156.77
  4. Step 4: Simplify right side
    989,643.44x = 678,588,292,924.91
  5. Step 5: Solve for x
    x = 678,588,292,924.91/989,643.44
  6. Step 6: Final answer
    x = 685,689.68

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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.