Home / 1,021,655.53-1,410,019.95-660,130.76

Finding the Fourth Proportional to 1,021,655.53, 1,410,019.95 and 660,130.76

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Solution

The fourth proportional to 1,021,655.53, 1,410,019.95 and 660,130.76 is: 911,067.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,655.53 : 1,410,019.95 = 660,130.76 : x
  2. Step 2: Convert to fraction form
    1,021,655.53/1,410,019.95 = 660,130.76/x
  3. Step 3: Cross multiply
    1,021,655.53x = 1,410,019.95 × 660,130.76
  4. Step 4: Simplify right side
    1,021,655.53x = 930,797,547,209.20
  5. Step 5: Solve for x
    x = 930,797,547,209.20/1,021,655.53
  6. Step 6: Final answer
    x = 911,067.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.