Home / 1,020,001.42-1,528,602.45-645,353.74

Finding the Fourth Proportional to 1,020,001.42, 1,528,602.45 and 645,353.74

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Solution

The fourth proportional to 1,020,001.42, 1,528,602.45 and 645,353.74 is: 967,145.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,001.42 : 1,528,602.45 = 645,353.74 : x
  2. Step 2: Convert to fraction form
    1,020,001.42/1,528,602.45 = 645,353.74/x
  3. Step 3: Cross multiply
    1,020,001.42x = 1,528,602.45 × 645,353.74
  4. Step 4: Simplify right side
    1,020,001.42x = 986,489,308,080.66
  5. Step 5: Solve for x
    x = 986,489,308,080.66/1,020,001.42
  6. Step 6: Final answer
    x = 967,145.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.