Home / 913,313.30-1,260,341.37-505,432.35

Finding the Fourth Proportional to 913,313.30, 1,260,341.37 and 505,432.35

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Solution

The fourth proportional to 913,313.30, 1,260,341.37 and 505,432.35 is: 697,479.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,313.30 : 1,260,341.37 = 505,432.35 : x
  2. Step 2: Convert to fraction form
    913,313.30/1,260,341.37 = 505,432.35/x
  3. Step 3: Cross multiply
    913,313.30x = 1,260,341.37 × 505,432.35
  4. Step 4: Simplify right side
    913,313.30x = 637,017,300,441.32
  5. Step 5: Solve for x
    x = 637,017,300,441.32/913,313.30
  6. Step 6: Final answer
    x = 697,479.50

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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.