Home / 738,164.45-1,018,666.93-398,632.67

Finding the Fourth Proportional to 738,164.45, 1,018,666.93 and 398,632.67

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Solution

The fourth proportional to 738,164.45, 1,018,666.93 and 398,632.67 is: 550,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,164.45 : 1,018,666.93 = 398,632.67 : x
  2. Step 2: Convert to fraction form
    738,164.45/1,018,666.93 = 398,632.67/x
  3. Step 3: Cross multiply
    738,164.45x = 1,018,666.93 × 398,632.67
  4. Step 4: Simplify right side
    738,164.45x = 406,073,918,146.60
  5. Step 5: Solve for x
    x = 406,073,918,146.60/738,164.45
  6. Step 6: Final answer
    x = 550,113.08

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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.