Home / 989,853.77-1,484,762.43-315,929.72

Finding the Fourth Proportional to 989,853.77, 1,484,762.43 and 315,929.72

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Solution

The fourth proportional to 989,853.77, 1,484,762.43 and 315,929.72 is: 473,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,853.77 : 1,484,762.43 = 315,929.72 : x
  2. Step 2: Convert to fraction form
    989,853.77/1,484,762.43 = 315,929.72/x
  3. Step 3: Cross multiply
    989,853.77x = 1,484,762.43 × 315,929.72
  4. Step 4: Simplify right side
    989,853.77x = 469,080,578,776.42
  5. Step 5: Solve for x
    x = 469,080,578,776.42/989,853.77
  6. Step 6: Final answer
    x = 473,888.76

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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.