Home / 709,289,914.80-1,062,143,281.80-465,633,620.40

Finding the Fourth Proportional to 709,289,914.80, 1,062,143,281.80 and 465,633,620.40

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Solution

The fourth proportional to 709,289,914.80, 1,062,143,281.80 and 465,633,620.40 is: 697,274,289.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,289,914.80 : 1,062,143,281.80 = 465,633,620.40 : x
  2. Step 2: Convert to fraction form
    709,289,914.80/1,062,143,281.80 = 465,633,620.40/x
  3. Step 3: Cross multiply
    709,289,914.80x = 1,062,143,281.80 × 465,633,620.40
  4. Step 4: Simplify right side
    709,289,914.80x = 494,569,621,688,071,360
  5. Step 5: Solve for x
    x = 494,569,621,688,071,360/709,289,914.80
  6. Step 6: Final answer
    x = 697,274,289.92

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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.