Home / 731,389.41-1,009,402.63-425,478.68

Finding the Fourth Proportional to 731,389.41, 1,009,402.63 and 425,478.68

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Solution

The fourth proportional to 731,389.41, 1,009,402.63 and 425,478.68 is: 587,210.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,389.41 : 1,009,402.63 = 425,478.68 : x
  2. Step 2: Convert to fraction form
    731,389.41/1,009,402.63 = 425,478.68/x
  3. Step 3: Cross multiply
    731,389.41x = 1,009,402.63 × 425,478.68
  4. Step 4: Simplify right side
    731,389.41x = 429,479,300,060.74
  5. Step 5: Solve for x
    x = 429,479,300,060.74/731,389.41
  6. Step 6: Final answer
    x = 587,210.17

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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.