Home / 913,307.31-1,260,333.06-505,426.35

Finding the Fourth Proportional to 913,307.31, 1,260,333.06 and 505,426.35

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Solution

The fourth proportional to 913,307.31, 1,260,333.06 and 505,426.35 is: 697,471.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,307.31 : 1,260,333.06 = 505,426.35 : x
  2. Step 2: Convert to fraction form
    913,307.31/1,260,333.06 = 505,426.35/x
  3. Step 3: Cross multiply
    913,307.31x = 1,260,333.06 × 505,426.35
  4. Step 4: Simplify right side
    913,307.31x = 637,005,538,300.13
  5. Step 5: Solve for x
    x = 637,005,538,300.13/913,307.31
  6. Step 6: Final answer
    x = 697,471.19

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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.