Home / 830,412.60-1,242,666.45-576,501.90

Finding the Fourth Proportional to 830,412.60, 1,242,666.45 and 576,501.90

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Solution

The fourth proportional to 830,412.60, 1,242,666.45 and 576,501.90 is: 862,703.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,412.60 : 1,242,666.45 = 576,501.90 : x
  2. Step 2: Convert to fraction form
    830,412.60/1,242,666.45 = 576,501.90/x
  3. Step 3: Cross multiply
    830,412.60x = 1,242,666.45 × 576,501.90
  4. Step 4: Simplify right side
    830,412.60x = 716,399,569,491.26
  5. Step 5: Solve for x
    x = 716,399,569,491.26/830,412.60
  6. Step 6: Final answer
    x = 862,703.15

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1.5x scale

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.