Home / 987,510.81-1,362,875.75-557,818.62

Finding the Fourth Proportional to 987,510.81, 1,362,875.75 and 557,818.62

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Solution

The fourth proportional to 987,510.81, 1,362,875.75 and 557,818.62 is: 769,852.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,510.81 : 1,362,875.75 = 557,818.62 : x
  2. Step 2: Convert to fraction form
    987,510.81/1,362,875.75 = 557,818.62/x
  3. Step 3: Cross multiply
    987,510.81x = 1,362,875.75 × 557,818.62
  4. Step 4: Simplify right side
    987,510.81x = 760,237,464,288.41
  5. Step 5: Solve for x
    x = 760,237,464,288.41/987,510.81
  6. Step 6: Final answer
    x = 769,852.29

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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.