Finding the Fourth Proportional to 920,881.52, 1,270,829.61 and 528,478.36
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Solution
The fourth proportional to 920,881.52, 1,270,829.61 and 528,478.36 is: 729,307.66
Step by Step Solution
- Step 1: Write the proportion equation
920,881.52 : 1,270,829.61 = 528,478.36 : x - Step 2: Convert to fraction form
920,881.52/1,270,829.61 = 528,478.36/x - Step 3: Cross multiply
920,881.52x = 1,270,829.61 × 528,478.36 - Step 4: Simplify right side
920,881.52x = 671,605,948,132.24 - Step 5: Solve for x
x = 671,605,948,132.24/920,881.52 - Step 6: Final answer
x = 729,307.66
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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.