Home / 651,421.34-898,888.89-379,432.35

Finding the Fourth Proportional to 651,421.34, 898,888.89 and 379,432.35

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Solution

The fourth proportional to 651,421.34, 898,888.89 and 379,432.35 is: 523,574.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,421.34 : 898,888.89 = 379,432.35 : x
  2. Step 2: Convert to fraction form
    651,421.34/898,888.89 = 379,432.35/x
  3. Step 3: Cross multiply
    651,421.34x = 898,888.89 × 379,432.35
  4. Step 4: Simplify right side
    651,421.34x = 341,067,525,344.46
  5. Step 5: Solve for x
    x = 341,067,525,344.46/651,421.34
  6. Step 6: Final answer
    x = 523,574.38

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1.5x scale

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.