Home / 1,316,333.80-1,974,500.70-859,688.20

Finding the Fourth Proportional to 1,316,333.80, 1,974,500.70 and 859,688.20

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Solution

The fourth proportional to 1,316,333.80, 1,974,500.70 and 859,688.20 is: 1,289,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,333.80 : 1,974,500.70 = 859,688.20 : x
  2. Step 2: Convert to fraction form
    1,316,333.80/1,974,500.70 = 859,688.20/x
  3. Step 3: Cross multiply
    1,316,333.80x = 1,974,500.70 × 859,688.20
  4. Step 4: Simplify right side
    1,316,333.80x = 1,697,454,952,681.74
  5. Step 5: Solve for x
    x = 1,697,454,952,681.74/1,316,333.80
  6. Step 6: Final answer
    x = 1,289,532.30

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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.