Home / 710,501.60-1,064,845.20-289,301.60

Finding the Fourth Proportional to 710,501.60, 1,064,845.20 and 289,301.60

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Solution

The fourth proportional to 710,501.60, 1,064,845.20 and 289,301.60 is: 433,583.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,501.60 : 1,064,845.20 = 289,301.60 : x
  2. Step 2: Convert to fraction form
    710,501.60/1,064,845.20 = 289,301.60/x
  3. Step 3: Cross multiply
    710,501.60x = 1,064,845.20 × 289,301.60
  4. Step 4: Simplify right side
    710,501.60x = 308,061,420,112.32
  5. Step 5: Solve for x
    x = 308,061,420,112.32/710,501.60
  6. Step 6: Final answer
    x = 433,583.01

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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.