Home / 913,306.95-1,260,332.55-505,425.98

Finding the Fourth Proportional to 913,306.95, 1,260,332.55 and 505,425.98

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Solution

The fourth proportional to 913,306.95, 1,260,332.55 and 505,425.98 is: 697,470.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,306.95 : 1,260,332.55 = 505,425.98 : x
  2. Step 2: Convert to fraction form
    913,306.95/1,260,332.55 = 505,425.98/x
  3. Step 3: Cross multiply
    913,306.95x = 1,260,332.55 × 505,425.98
  4. Step 4: Simplify right side
    913,306.95x = 637,004,807,907.99
  5. Step 5: Solve for x
    x = 637,004,807,907.99/913,306.95
  6. Step 6: Final answer
    x = 697,470.67

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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.