Home / 869,189.40-1,303,346.70-514,312.20

Finding the Fourth Proportional to 869,189.40, 1,303,346.70 and 514,312.20

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Solution

The fourth proportional to 869,189.40, 1,303,346.70 and 514,312.20 is: 771,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,189.40 : 1,303,346.70 = 514,312.20 : x
  2. Step 2: Convert to fraction form
    869,189.40/1,303,346.70 = 514,312.20/x
  3. Step 3: Cross multiply
    869,189.40x = 1,303,346.70 × 514,312.20
  4. Step 4: Simplify right side
    869,189.40x = 670,327,108,639.74
  5. Step 5: Solve for x
    x = 670,327,108,639.74/869,189.40
  6. Step 6: Final answer
    x = 771,209.48

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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.