Home / 632,485.26-872,836.55-345,999.20

Finding the Fourth Proportional to 632,485.26, 872,836.55 and 345,999.20

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Solution

The fourth proportional to 632,485.26, 872,836.55 and 345,999.20 is: 477,482.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,485.26 : 872,836.55 = 345,999.20 : x
  2. Step 2: Convert to fraction form
    632,485.26/872,836.55 = 345,999.20/x
  3. Step 3: Cross multiply
    632,485.26x = 872,836.55 × 345,999.20
  4. Step 4: Simplify right side
    632,485.26x = 302,000,748,030.76
  5. Step 5: Solve for x
    x = 302,000,748,030.76/632,485.26
  6. Step 6: Final answer
    x = 477,482.67

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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.