Home / 889,430.40-1,333,238.40-439,459.20

Finding the Fourth Proportional to 889,430.40, 1,333,238.40 and 439,459.20

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Solution

The fourth proportional to 889,430.40, 1,333,238.40 and 439,459.20 is: 658,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,430.40 : 1,333,238.40 = 439,459.20 : x
  2. Step 2: Convert to fraction form
    889,430.40/1,333,238.40 = 439,459.20/x
  3. Step 3: Cross multiply
    889,430.40x = 1,333,238.40 × 439,459.20
  4. Step 4: Simplify right side
    889,430.40x = 585,903,880,673.28
  5. Step 5: Solve for x
    x = 585,903,880,673.28/889,430.40
  6. Step 6: Final answer
    x = 658,740.56

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1.5x scale

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.