Home / 1,020,006.42-1,528,609.95-645,358.74

Finding the Fourth Proportional to 1,020,006.42, 1,528,609.95 and 645,358.74

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Solution

The fourth proportional to 1,020,006.42, 1,528,609.95 and 645,358.74 is: 967,152.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,006.42 : 1,528,609.95 = 645,358.74 : x
  2. Step 2: Convert to fraction form
    1,020,006.42/1,528,609.95 = 645,358.74/x
  3. Step 3: Cross multiply
    1,020,006.42x = 1,528,609.95 × 645,358.74
  4. Step 4: Simplify right side
    1,020,006.42x = 986,501,791,283.46
  5. Step 5: Solve for x
    x = 986,501,791,283.46/1,020,006.42
  6. Step 6: Final answer
    x = 967,152.53

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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.