Home / 1,030,157.33-1,421,443.80-686,506.28

Finding the Fourth Proportional to 1,030,157.33, 1,421,443.80 and 686,506.28

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Solution

The fourth proportional to 1,030,157.33, 1,421,443.80 and 686,506.28 is: 947,263.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,157.33 : 1,421,443.80 = 686,506.28 : x
  2. Step 2: Convert to fraction form
    1,030,157.33/1,421,443.80 = 686,506.28/x
  3. Step 3: Cross multiply
    1,030,157.33x = 1,421,443.80 × 686,506.28
  4. Step 4: Simplify right side
    1,030,157.33x = 975,830,088,259.85
  5. Step 5: Solve for x
    x = 975,830,088,259.85/1,030,157.33
  6. Step 6: Final answer
    x = 947,263.16

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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.