Home / 839,985.76-1,159,155.08-458,020

Finding the Fourth Proportional to 839,985.76, 1,159,155.08 and 458,020

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Solution

The fourth proportional to 839,985.76, 1,159,155.08 and 458,020 is: 632,053.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,985.76 : 1,159,155.08 = 458,020 : x
  2. Step 2: Convert to fraction form
    839,985.76/1,159,155.08 = 458,020/x
  3. Step 3: Cross multiply
    839,985.76x = 1,159,155.08 × 458,020
  4. Step 4: Simplify right side
    839,985.76x = 530,916,209,741.60
  5. Step 5: Solve for x
    x = 530,916,209,741.60/839,985.76
  6. Step 6: Final answer
    x = 632,053.82

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1.5x scale

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.