Home / 1,210,228.02-1,670,176.05-686,975.47

Finding the Fourth Proportional to 1,210,228.02, 1,670,176.05 and 686,975.47

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Solution

The fourth proportional to 1,210,228.02, 1,670,176.05 and 686,975.47 is: 948,060.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,228.02 : 1,670,176.05 = 686,975.47 : x
  2. Step 2: Convert to fraction form
    1,210,228.02/1,670,176.05 = 686,975.47/x
  3. Step 3: Cross multiply
    1,210,228.02x = 1,670,176.05 × 686,975.47
  4. Step 4: Simplify right side
    1,210,228.02x = 1,147,369,976,931.49
  5. Step 5: Solve for x
    x = 1,147,369,976,931.49/1,210,228.02
  6. Step 6: Final answer
    x = 948,060.99

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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.