Home / 913,635.90-1,260,802.24-505,728.96

Finding the Fourth Proportional to 913,635.90, 1,260,802.24 and 505,728.96

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Solution

The fourth proportional to 913,635.90, 1,260,802.24 and 505,728.96 is: 697,897.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,635.90 : 1,260,802.24 = 505,728.96 : x
  2. Step 2: Convert to fraction form
    913,635.90/1,260,802.24 = 505,728.96/x
  3. Step 3: Cross multiply
    913,635.90x = 1,260,802.24 × 505,728.96
  4. Step 4: Simplify right side
    913,635.90x = 637,624,209,068.96
  5. Step 5: Solve for x
    x = 637,624,209,068.96/913,635.90
  6. Step 6: Final answer
    x = 697,897.50

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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.