Finding the Fourth Proportional to 539,458.40, 808,312.80 and 339,420.80
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Solution
The fourth proportional to 539,458.40, 808,312.80 and 339,420.80 is: 508,580.79
Step by Step Solution
- Step 1: Write the proportion equation
539,458.40 : 808,312.80 = 339,420.80 : x - Step 2: Convert to fraction form
539,458.40/808,312.80 = 339,420.80/x - Step 3: Cross multiply
539,458.40x = 808,312.80 × 339,420.80 - Step 4: Simplify right side
539,458.40x = 274,358,177,226.24 - Step 5: Solve for x
x = 274,358,177,226.24/539,458.40 - Step 6: Final answer
x = 508,580.79
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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.