Home / 915,681.04-1,263,712.80-507,823.36

Finding the Fourth Proportional to 915,681.04, 1,263,712.80 and 507,823.36

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Solution

The fourth proportional to 915,681.04, 1,263,712.80 and 507,823.36 is: 700,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,681.04 : 1,263,712.80 = 507,823.36 : x
  2. Step 2: Convert to fraction form
    915,681.04/1,263,712.80 = 507,823.36/x
  3. Step 3: Cross multiply
    915,681.04x = 1,263,712.80 × 507,823.36
  4. Step 4: Simplify right side
    915,681.04x = 641,742,880,171.01
  5. Step 5: Solve for x
    x = 641,742,880,171.01/915,681.04
  6. Step 6: Final answer
    x = 700,836.70

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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.