Home / 688,507.30-1,030,428.15-688,507.30

Finding the Fourth Proportional to 688,507.30, 1,030,428.15 and 688,507.30

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Solution

The fourth proportional to 688,507.30, 1,030,428.15 and 688,507.30 is: 1,030,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,507.30 : 1,030,428.15 = 688,507.30 : x
  2. Step 2: Convert to fraction form
    688,507.30/1,030,428.15 = 688,507.30/x
  3. Step 3: Cross multiply
    688,507.30x = 1,030,428.15 × 688,507.30
  4. Step 4: Simplify right side
    688,507.30x = 709,457,303,400.50
  5. Step 5: Solve for x
    x = 709,457,303,400.50/688,507.30
  6. Step 6: Final answer
    x = 1,030,428.15

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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.