Home / 630,047.51-869,431.37-358,077.66

Finding the Fourth Proportional to 630,047.51, 869,431.37 and 358,077.66

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Solution

The fourth proportional to 630,047.51, 869,431.37 and 358,077.66 is: 494,127.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,047.51 : 869,431.37 = 358,077.66 : x
  2. Step 2: Convert to fraction form
    630,047.51/869,431.37 = 358,077.66/x
  3. Step 3: Cross multiply
    630,047.51x = 869,431.37 × 358,077.66
  4. Step 4: Simplify right side
    630,047.51x = 311,323,952,354.18
  5. Step 5: Solve for x
    x = 311,323,952,354.18/630,047.51
  6. Step 6: Final answer
    x = 494,127.74

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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.