Finding the Fourth Proportional to 752,659.84, 1,038,673.92 and 413,130.88
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Solution
The fourth proportional to 752,659.84, 1,038,673.92 and 413,130.88 is: 570,122.45
Step by Step Solution
- Step 1: Write the proportion equation
752,659.84 : 1,038,673.92 = 413,130.88 : x - Step 2: Convert to fraction form
752,659.84/1,038,673.92 = 413,130.88/x - Step 3: Cross multiply
752,659.84x = 1,038,673.92 × 413,130.88 - Step 4: Simplify right side
752,659.84x = 429,108,270,602.65 - Step 5: Solve for x
x = 429,108,270,602.65/752,659.84 - Step 6: Final answer
x = 570,122.45
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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.