Home / 603,110.80-904,666.20-390,534.40

Finding the Fourth Proportional to 603,110.80, 904,666.20 and 390,534.40

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Solution

The fourth proportional to 603,110.80, 904,666.20 and 390,534.40 is: 585,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,110.80 : 904,666.20 = 390,534.40 : x
  2. Step 2: Convert to fraction form
    603,110.80/904,666.20 = 390,534.40/x
  3. Step 3: Cross multiply
    603,110.80x = 904,666.20 × 390,534.40
  4. Step 4: Simplify right side
    603,110.80x = 353,303,271,617.28
  5. Step 5: Solve for x
    x = 353,303,271,617.28/603,110.80
  6. Step 6: Final answer
    x = 585,801.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.