Finding the Fourth Proportional to 752,275.15, 1,038,212.64 and 429,923.65
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Solution
The fourth proportional to 752,275.15, 1,038,212.64 and 429,923.65 is: 593,336.32
Step by Step Solution
- Step 1: Write the proportion equation
752,275.15 : 1,038,212.64 = 429,923.65 : x - Step 2: Convert to fraction form
752,275.15/1,038,212.64 = 429,923.65/x - Step 3: Cross multiply
752,275.15x = 1,038,212.64 × 429,923.65 - Step 4: Simplify right side
752,275.15x = 446,352,167,016.05 - Step 5: Solve for x
x = 446,352,167,016.05/752,275.15 - Step 6: Final answer
x = 593,336.32
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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.