Home / 1,501,011.70-2,071,393.40-812,683.47

Finding the Fourth Proportional to 1,501,011.70, 2,071,393.40 and 812,683.47

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Solution

The fourth proportional to 1,501,011.70, 2,071,393.40 and 812,683.47 is: 1,121,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501,011.70 : 2,071,393.40 = 812,683.47 : x
  2. Step 2: Convert to fraction form
    1,501,011.70/2,071,393.40 = 812,683.47/x
  3. Step 3: Cross multiply
    1,501,011.70x = 2,071,393.40 × 812,683.47
  4. Step 4: Simplify right side
    1,501,011.70x = 1,683,387,176,047.10
  5. Step 5: Solve for x
    x = 1,683,387,176,047.10/1,501,011.70
  6. Step 6: Final answer
    x = 1,121,501.70

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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.