Home / 868,303.40-1,302,017.70-513,426.20

Finding the Fourth Proportional to 868,303.40, 1,302,017.70 and 513,426.20

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Solution

The fourth proportional to 868,303.40, 1,302,017.70 and 513,426.20 is: 769,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,303.40 : 1,302,017.70 = 513,426.20 : x
  2. Step 2: Convert to fraction form
    868,303.40/1,302,017.70 = 513,426.20/x
  3. Step 3: Cross multiply
    868,303.40x = 1,302,017.70 × 513,426.20
  4. Step 4: Simplify right side
    868,303.40x = 668,490,000,043.74
  5. Step 5: Solve for x
    x = 668,490,000,043.74/868,303.40
  6. Step 6: Final answer
    x = 769,880.67

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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.