Home / 651,688.65-899,328.90-397,040.04

Finding the Fourth Proportional to 651,688.65, 899,328.90 and 397,040.04

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Solution

The fourth proportional to 651,688.65, 899,328.90 and 397,040.04 is: 547,914.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,688.65 : 899,328.90 = 397,040.04 : x
  2. Step 2: Convert to fraction form
    651,688.65/899,328.90 = 397,040.04/x
  3. Step 3: Cross multiply
    651,688.65x = 899,328.90 × 397,040.04
  4. Step 4: Simplify right side
    651,688.65x = 357,069,582,429.16
  5. Step 5: Solve for x
    x = 357,069,582,429.16/651,688.65
  6. Step 6: Final answer
    x = 547,914.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.