Home / 1,186,308.04-1,637,106.60-642,444.70

Finding the Fourth Proportional to 1,186,308.04, 1,637,106.60 and 642,444.70

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Solution

The fourth proportional to 1,186,308.04, 1,637,106.60 and 642,444.70 is: 886,574.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,308.04 : 1,637,106.60 = 642,444.70 : x
  2. Step 2: Convert to fraction form
    1,186,308.04/1,637,106.60 = 642,444.70/x
  3. Step 3: Cross multiply
    1,186,308.04x = 1,637,106.60 × 642,444.70
  4. Step 4: Simplify right side
    1,186,308.04x = 1,051,750,458,505.02
  5. Step 5: Solve for x
    x = 1,051,750,458,505.02/1,186,308.04
  6. Step 6: Final answer
    x = 886,574.50

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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.